I'm here because of this guy ^^^^. At a wild arse guesstimate I'd reckon there's all of $1 worth of additional machining and the only reason that it's not done on the cheaper hubs to save weight is so that they can charge a premium price to buy the lighter hubs.
I have the Ultegra wheels, bulletproof and handle thousands of miles without maintenance. They feel solid when cornering and spin up quickly for 1650 grams. They feel like 1450 grams
@8:32 you say that both have the identical bearing system, but, ultegra have 11 balls and dura-ace have 14. I believe it makes a significant difference. Very nice video! Congrats!
Hi boss, do you know the ball sizes for both front and rear ultegra hubs? I assume the rear hub has 9-ball per side and 1/4". What about the front hub ball size? Thanks.
No regret of my new Shimano Dura-ace R9100-C24, as usual, every details has been explained parts by parts thoroughly, no one can match this complete full detail comparison ever!
Wow. That is pretty compulsively detailed (and yet I watched the whole thing). I just bought some WH6800s so this was quite illuminating for me. Thanks.
Excellent breakdown. One thing I believe you didn't mention is that the indexing teeth on the Dura Ace assembly are smaller than that of the Ultegra, allowing a finer level of preload adjustment. Cheers!
My guess on the difference in bearings are that the smaller DA bearings allow for more contact points and with smaller bearings, less resistance. I'm assuming the bearings are of higher quality and material hardness instead of the larger, softer metal bearings. Marginal gains for sure. Great breakdown of the wheels and proves that Ultegra hits a great balance of performance and value.
This detail is all well and good, but does the wheel feel planted like my wife's gardenias, or spin up like the washing machine in our new kitchen extension, or roll like a roundel of well-matured cheddar?
: Great job mate. Best job even. That is exactly the kind of thorough review I would like to see from people that make money reviewing these thing like magazine and "prof" UA-cam Channels but there is not one of the above that does it in that way. Thanks a ton!
Great vid. Always wondered about the real difference. Actually not as much as I thought. I just don't think you can beat a 6800 wheelset in terms of quality vs value for money. I've had a few alloy wheelsets over the yrs that have been lighter. But the brake track and cassette hub body quality have been far inferior. Absolutely love mine. Very dependible, my training, racing and rough gravel riding go anywhere wheelset. Must have put 10,000km's on mine easily and no issues- only needed to true them slightly once.
+swites Yeah, Ultegra is pretty much the perfect balance of Price, Strength, Weight and Performance. In a way, this makes it more of a design achievement than Dura Ace.
hey- great video. let's say hypothetically your ultegra spoke broke at the hub ( right inside that microscopic little hub nut). how would you replace it? i tried shimano part number Y4Ck89000 and it sorta works except it's about twice as long and the dust cap won't sit fully flush.
I noticed at 6:15 when you are comparing the cone race ( DA) on the left is still in good condition and the Ultegra on the right has a wear and tear already. I assumed that they have the same mileage. IMO the DA hub is more durable than the Ultegra hub.
i am totally into you wheel-related videos. its geeky and fascinating at the same time. i would love to hear your opinion on disc brake road bike wheels. cheers.
Hi boss, do you know the ball sizes for both front and rear ultegra hubs? I assume the rear hub has 9-ball per side and 1/4". What about the front hub ball size? Thanks.
Great video, I'm finding my Ultegra wheels don't roll as fast as other wheels I have (Mavic,Hopes,Dtswiss), yet seem to spin well. Do you recon it the tyres or would you say industrial bearings roll faster in your opinion?
@@sloveloguy Thanks for that I will try it, I also find Pro ones or Conti TL help too 8-10watts only. I've done some ceramic ball bearings from ebay swap and that work on some old 501's. Oddly the sealed bearing I've had without sheilds roll in the hand way faster than anything, until you lubricate them. The sheild contact of a bearing is 60% of your resistance and the ball only 3 %. As I normally use Hope wheels as they roll well, as the bearings are good. Hope interestingly don't believe ceramics give you enough gain to be worth bother doing them. But if you've tried skateboards then you'll know they do seem to make you go further. Molyslip grease is fast rolling I've tried that too. But schwable pro-ones on these rims though just dont fit! lol. I will give your tip a go and see what happens. White lighting comes up best as grease from lots of googling by the way, and some very expensive rare japanese stuff . ( For Low cost just try molly slip and low or no contact sheilds)
You could probably weigh the spokes as a group to find out if they're really the same. Maybe the weight per piece is too light to register the difference.
Seeing as you are a fastidious nitpicker I find such an omission out of character :-) I have the same remark about weighing the spokes together since your scales do not look highly precise, and so went looking through the comments to see if it's been brought up already ... and it has been. Great video, I was looking for these answers exactly. Thanks!
Another difference in the mechanics of the hubs: the plastic dust cover that's affixed to the Ultegra's axle is often, as with many things Ultegra vs. Dura Ace, not as precisely positioned as it could be (rougher tolerances and whatnot, as you mentioned), which means there's perceptible drag as the hub shell spins against it. Probably not watt-sapping enough to notice when you're riding the thing, and maybe you could shave down the plastic a bit if needed.
There’s some difference in the threading of the hub axles. The ultegra and DA axles are not interchangeable due to threading and the DA axle is about 5mm shorter than ultegra
Thank you very much for the video, I would like to know if it is possible to replace the DA C24 rims with Ultegra, I have the wheels but the rims are worn on the braking line. I hope you can help me.
I enjoy the level of detail. It allows me to make up my own theories and impressions based on what you show. It would be interesting to know the rolling resistance and how people experience their life spans. Also, since these hubs are traditional, do they lend themselves to maintenance and upgrades? Can the cones and bearings be replaced/upgraded, for example?
Hey. The fact they can be taken apart shows they can be maintained. The only thing about these is the freebody unit is non-servicable. They last forever though. As for upgrading the bearing system; you could possibly drill out the cups but I don’t see why you would want to stick cartridge in here. This way is the best.
also i wanted to ask if this would be a good upgrade for me 90s italian chesini racer which runs on old campy wheels ... do u think that the ultegras are a bit over the top considering the fact i bought the bike for 500bucks ? thanx dude
Great parts review. As to "...what the difference is between these two wheels," like weight, price is probably worth noting. Durability may be tested and could be key. High end mat'ls or weight-weenie designs may go TOO far. As the firstborn, Dura Ace typically benefits from being spoiled with features and weight-redux measures, but SOMETIMES is burdened with the flaws of nascent technology, that is corrected in its follow-on little brother Ultegra. Although probably not the case with wheels, I do recall issues with Di2 and certain drivetrain components, Dura Ace vs Ultegra.
I know I’m late to the party, but one comment on the hubs. Just because they both work according to the same principle, they are by far not the same. The hub shell on DA has a larger OD and ID with a thinner wall thickness, which makes them lighter and, if calculated correctly, stiffer. Also the bearing races are larger in diameter to make room for more balls and even with the smaller balls, larger bearings with more balls can carry more load, so they should last longer. The polished (and most likely better hardened) bearing surfaces on the DA should reduce friction and save you some Watts. To really compare these two wheels in a fair way, one would also have to know more about the used materials of shell, axle and and even the balls (different grades make a big difference in quality and price). Don’t be fooled by the looks!
excellent video! I was thinking about getting the dura ace C24 wheels. I'm looking for something lightweight for my colnago master but want to stay away from full carbon. Descending down doi inthanon for an hour in 38*C heat would probably give me more than paranoia on lightweight carbon clinchers.
If anything, from those points mentioned I daresay the Ultegra wheel may be slightly more robust, with spoke holes being drilled into the rim directly and a slightly heavier hub body and axle.
Yeah I agree with you. The metal of the rim though, is soft as fuck. One of the threads was crossed when I took the wheel apart and I had to re-cut it. As I was cleaning out the swarf from the damaged thread with a small flat blade driver, I found I could just cut the thread back in with the driver itself! Very very soft indeed.
instead of weighing 1 spoke with a possible rounding error, you could weigh all spokes and see if there's a difference. If there is a difference, it could be the nipple material. Maybe there isn't a difference, but you wouldn't notice if a DA spoke weighed 5.6 grams and an Ultegra weighed 6.4 grams, and you could still end up with 16 grams of total weight difference for 20 spokes.
Cheers mate. Nah, the rim on the Dura Ace was wrecked in a crash, so I was swapping the Dura Ace hub into an Ultegra wheel for a friend. Decided to take the opportunity to make a video when both wheels were in bits
As an industrial/designer engineer, I can say that many of the Ultegra parts look substantially more robust than the dura ace parts....pay less for better parts?
Have you tried either wheel? I have the c24 on one bike and thinking about getting a second pair for a second bike but then was looking at ultegra to save ~$700
just a big detail was missed...bearings, cup and cones on dura ace are made of titanium and on ultegra of steel... so its made those parts litlle lighter but lot of more durable... only 30grs difference but huge durability more... great video..congrats!!
TheDarkInstall ... 100% sure that those parts are made of Ti, I'am product coord of Shimano Latin America, located in Brazil..😉... the hub of the dura ace wheels is the same thatnow are equiping the shimano PRO TT wheels, same that team Sky, Giant Sunweb and others are using in the pro tour... fully Ti... precious infos..👍...
Difference size/count balls and races. The Ultegra should theoretically have a higher axial load potential, but Dura-Ace should theoretically have a higher RPM potential (which usually translates to less resistance). Probably no real difference in radial load potential between them.
This is a great review. I'm nitpicking here, but since the spokes are the same, less time could be spent talking about those and more information about the pros and cons of carbon laminate or aluminum rims would have answered every question I could think of. As for the last question about winning a race... a good argument could also be made that lighter weight equals faster than aerodynamic benefit gained from a minusculely (is that even a word?) deeper rim, but that would require more technical data than my small brain could handle. Awesome review though. You obviously know your shit ;)
im quite surprised that the rim weight difference is only 30g.. after all that whole carbon laminated thing was for saving 30g each wheel? changing butyl tube to latex would do better. thats just disappointing
What about the surface hardness of the bearing races? A superior grade of steel would allow more hardness/wear resistance/fatigue life. Bearing balls- grade 10 gives lower peak contact stress than grade 100, due to lower variation in size/ovality. By way of example, Shimano makes numerous different M10x9 bearing cones, all interchangeable, all with different part numbers. Check out the exploded diagrams on SI Shimano.com. The cheaper ones go pitted and wear out much faster than the higher-end ones. This is why Ultegra is more cost-effective than Sora, if your habit is to give the equipment a good hard thrashing- you spend less time replacing parts, and run a lower risk of dropping time in a race, through worn parts, if you use Ultegra. Dunno about Dura-Ace- out of my league!
Hi DarkInstall. Interesting video, thanks for creating it. For some feedback if you like, if you would like to go super pro on detail and valid comparisons, please include the shimano spec sheets to hear what the manufacture release: productinfo.shimano.com/#/spec/1.8 And, if you have any post production luxury, I would love to see numbers edited overtop 2 comparing items (ie: weight etc.) Keep up the great work!
This kind of content is COMPLETELY USELESS, if you dont use a scale with 3 decimal points!!! When 2 pieces are 2 and 4gr, it´s probable that the 1st was 2,99 , and the 2nd 4,01gr , so here is the diffference 25%, instead of 50%, that your scale lets you assume... Good work, but useless without a better scale. It´s like trying to make a most precise weather estimation, but at the same time, refusing to draw your thick, black window-curtains aside...
Шимано колеса и втулки - говно. Они их не умеют делать. Я проездил с десяток лет на шимано, постоянные проблемы, то настроить, то люфт, то шарики, то оськи, то спицы, ничего нет, ну его нафиг. Как поменял фирму и поставил на промах - сразу все забыл как страшный сон. что ультегра, что дюрейс, все говно собачье, рукожопность производителей.
Hi boss, do you know the ball sizes for both front and rear ultegra hubs? I assume the rear hub has 9-ball per side and 1/4". What about the front hub ball size? Thanks.
"Would you loose a race because you had ultegra instead of dura ace? - No you f*ckin wouldn't"
Subscribed lol
12:33
Thorough as always.
I'm here because of this guy ^^^^.
At a wild arse guesstimate I'd reckon there's all of $1 worth of additional machining and the only reason that it's not done on the cheaper hubs to save weight is so that they can charge a premium price to buy the lighter hubs.
Excellent. The silly detail is what makes it so much better than anodyne "reviews" seen elsewhere.
I have the Ultegra wheels, bulletproof and handle thousands of miles without maintenance. They feel solid when cornering and spin up quickly for 1650 grams. They feel like 1450 grams
Your videos are fantastic, not sure why they have so few views. I assume that will change going forward! Keep killing it.
+imjustinb Ah thanks! Yeah I am not going to stop. Feel free to share my videos to spread the word! :)
Just found this gem of a video. I don't even know if you check your old videos for comments but damn... fantastic explanation.
One of the most thorough and intelligent bike related videos i’ve seen on youtube, well done!!
@8:32 you say that both have the identical bearing system, but, ultegra have 11 balls and dura-ace have 14. I believe it makes a significant difference. Very nice video! Congrats!
Hi boss, do you know the ball sizes for both front and rear ultegra hubs? I assume the rear hub has 9-ball per side and 1/4". What about the front hub ball size? Thanks.
No regret of my new Shimano Dura-ace R9100-C24, as usual, every details has been explained parts by parts thoroughly, no one can match this complete full detail comparison ever!
to take it to the next level, please do
durace vs durace hubs
Wow. That is pretty compulsively detailed (and yet I watched the whole thing). I just bought some WH6800s so this was quite illuminating for me. Thanks.
This is a fkn good video
+Lanterne Rouge Thanks mate!
Excellent breakdown. One thing I believe you didn't mention is that the indexing teeth on the Dura Ace assembly are smaller than that of the Ultegra, allowing a finer level of preload adjustment. Cheers!
If only all product reviews could be like this 👏
I love the detail and the explanations here - perfection 👍. As a big snooker fan, I also like how it's like listening to Steve Davis 😄
Great 👍🏾! Really appreciate for such an in-depth review.
My guess on the difference in bearings are that the smaller DA bearings allow for more contact points and with smaller bearings, less resistance. I'm assuming the bearings are of higher quality and material hardness instead of the larger, softer metal bearings. Marginal gains for sure. Great breakdown of the wheels and proves that Ultegra hits a great balance of performance and value.
Cruz er Yeah you could definitely be right about the bearings.
This detail is all well and good, but does the wheel feel planted like my wife's gardenias, or spin up like the washing machine in our new kitchen extension, or roll like a roundel of well-matured cheddar?
great review nice to see the finer details thank you and interesting outcome
: Great job mate. Best job even. That is exactly the kind of thorough review I would like to see from people that make money reviewing these thing like magazine and "prof" UA-cam Channels but there is not one of the above that does it in that way.
Thanks a ton!
Cheers mate. Yeah I made this channel for this very reason. Glad it is appreciated!!
Thanks for the comparison video!
I appreciate your effort and commitment Mate.
Anytime :)
Great vid. Always wondered about the real difference. Actually not as much as I thought. I just don't think you can beat a 6800 wheelset in terms of quality vs value for money. I've had a few alloy wheelsets over the yrs that have been lighter. But the brake track and cassette hub body quality have been far inferior. Absolutely love mine. Very dependible, my training, racing and rough gravel riding go anywhere wheelset. Must have put 10,000km's on mine easily and no issues- only needed to true them slightly once.
+swites Yeah, Ultegra is pretty much the perfect balance of Price, Strength, Weight and Performance. In a way, this makes it more of a design achievement than Dura Ace.
hey- great video. let's say hypothetically your ultegra spoke broke at the hub ( right inside that microscopic little hub nut). how would you replace it? i tried shimano part number Y4Ck89000 and it sorta works except it's about twice as long and the dust cap won't sit fully flush.
they're not mechanicaly identical. DA has more contact points on the bearings - more balls!!!
Crazy detail!! Awesome
Thanks for the comparison keep up the good work.
I noticed at 6:15 when you are comparing the cone race ( DA) on the left is still in good condition and the Ultegra on the right has a wear and tear already. I assumed that they have the same mileage. IMO the DA hub is more durable than the Ultegra hub.
What about the Rs81?they re the in between wheelset,superb value for money.
brilliant review. Thank you. One question though: what is the internal/external rim width on ultegra and dura ace ?
i am totally into you wheel-related videos. its geeky and fascinating at the same time. i would love to hear your opinion on disc brake road bike wheels. cheers.
Hi boss, do you know the ball sizes for both front and rear ultegra hubs? I assume the rear hub has 9-ball per side and 1/4". What about the front hub ball size? Thanks.
Alright lad. No idea sorry! I'm in France at the moment so will check when I get back home to fucking STRAYA mate.
Great video, I'm finding my Ultegra wheels don't roll as fast as other wheels I have (Mavic,Hopes,Dtswiss), yet seem to spin well. Do you recon it the tyres or would you say industrial bearings roll faster in your opinion?
@@sloveloguy Thanks for that I will try it, I also find Pro ones or Conti TL help too 8-10watts only. I've done some ceramic ball bearings from ebay swap and that work on some old 501's. Oddly the sealed bearing I've had without sheilds roll in the hand way faster than anything, until you lubricate them. The sheild contact of a bearing is 60% of your resistance and the ball only 3 %. As I normally use Hope wheels as they roll well, as the bearings are good. Hope interestingly don't believe ceramics give you enough gain to be worth bother doing them. But if you've tried skateboards then you'll know they do seem to make you go further. Molyslip grease is fast rolling I've tried that too. But schwable pro-ones on these rims though just dont fit! lol. I will give your tip a go and see what happens. White lighting comes up best as grease from lots of googling by the way, and some very expensive rare japanese stuff . ( For Low cost just try molly slip and low or no contact sheilds)
You could probably weigh the spokes as a group to find out if they're really the same. Maybe the weight per piece is too light to register the difference.
Good idea mate. Bit late now, but yeah that would have worked.
Seeing as you are a fastidious nitpicker I find such an omission out of character :-) I have the same remark about weighing the spokes together since your scales do not look highly precise, and so went looking through the comments to see if it's been brought up already ... and it has been. Great video, I was looking for these answers exactly. Thanks!
Thanks Great info.
Another difference in the mechanics of the hubs: the plastic dust cover that's affixed to the Ultegra's axle is often, as with many things Ultegra vs. Dura Ace, not as precisely positioned as it could be (rougher tolerances and whatnot, as you mentioned), which means there's perceptible drag as the hub shell spins against it. Probably not watt-sapping enough to notice when you're riding the thing, and maybe you could shave down the plastic a bit if needed.
There’s some difference in the threading of the hub axles. The ultegra and DA axles are not interchangeable due to threading and the DA axle is about 5mm shorter than ultegra
Superb comparison.
Thank you very much for the video, I would like to know if it is possible to replace the DA C24 rims with Ultegra, I have the wheels but the rims are worn on the braking line. I hope you can help me.
Do you know what is the recommended weight limit for ultegra and for dura-ace wheels? I couldn't found this information anywhere...
I enjoy the level of detail. It allows me to make up my own theories and impressions based on what you show. It would be interesting to know the rolling resistance and how people experience their life spans. Also, since these hubs are traditional, do they lend themselves to maintenance and upgrades? Can the cones and bearings be replaced/upgraded, for example?
Hey. The fact they can be taken apart shows they can be maintained. The only thing about these is the freebody unit is non-servicable. They last forever though. As for upgrading the bearing system; you could possibly drill out the cups but I don’t see why you would want to stick cartridge in here. This way is the best.
also i wanted to ask if this would be a good upgrade for me 90s italian chesini racer which runs on old campy wheels ... do u think that the ultegras are a bit over the top considering the fact i bought the bike for 500bucks ? thanx dude
how about a comparison between shimano sora and ultegra as i have on 2 different bikes.
danny oneill Good idea. If people find these in-depth comparison videos useful I can do a whole series.
Great parts review. As to "...what the difference is between these two wheels," like weight, price is probably worth noting. Durability may be tested and could be key. High end mat'ls or weight-weenie designs may go TOO far. As the firstborn, Dura Ace typically benefits from being spoiled with features and weight-redux measures, but SOMETIMES is burdened with the flaws of nascent technology, that is corrected in its follow-on little brother Ultegra. Although probably not the case with wheels, I do recall issues with Di2 and certain drivetrain components, Dura Ace vs Ultegra.
beside the weight aren't the carbon rims stiffer than the aluminium ones and therefore more responsive ?
I know I’m late to the party, but one comment on the hubs. Just because they both work according to the same principle, they are by far not the same. The hub shell on DA has a larger OD and ID with a thinner wall thickness, which makes them lighter and, if calculated correctly, stiffer. Also the bearing races are larger in diameter to make room for more balls and even with the smaller balls, larger bearings with more balls can carry more load, so they should last longer. The polished (and most likely better hardened) bearing surfaces on the DA should reduce friction and save you some Watts. To really compare these two wheels in a fair way, one would also have to know more about the used materials of shell, axle and and even the balls (different grades make a big difference in quality and price). Don’t be fooled by the looks!
Is there a difference with hubs on the RS81? Would it be like Ultegra or lower? I own a set of RS81 C24.
Really nice video! I predict weight weenies are going to drive up the price of Ultegra lock rings now.
+Franklin Schwartz Haha. Let's stock pile a load and sell them as the price peaks.
excellent video! I was thinking about getting the dura ace C24 wheels. I'm looking for something lightweight for my colnago master but want to stay away from full carbon. Descending down doi inthanon for an hour in 38*C heat would probably give me more than paranoia on lightweight carbon clinchers.
Vegan Footsoldier Thanks mate! Your videos are wicked, so that is definitely a compliment coming from you. Yeah these c24 Dura Ace are really good.
go for the C24's I got them for my Colnago C40 last summer..great and reliable wheels
Brilliant video, are 9100 the same as 9000 or not, would love to know from an expert
If anything, from those points mentioned I daresay the Ultegra wheel may be slightly more robust, with spoke holes being drilled into the rim directly and a slightly heavier hub body and axle.
Yeah I agree with you. The metal of the rim though, is soft as fuck. One of the threads was crossed when I took the wheel apart and I had to re-cut it. As I was cleaning out the swarf from the damaged thread with a small flat blade driver, I found I could just cut the thread back in with the driver itself! Very very soft indeed.
I love the hi-fi interconnect BS reference! Haha I agree! Great vid, thanks!:D
instead of weighing 1 spoke with a possible rounding error, you could weigh all spokes and see if there's a difference. If there is a difference, it could be the nipple material. Maybe there isn't a difference, but you wouldn't notice if a DA spoke weighed 5.6 grams and an Ultegra weighed 6.4 grams, and you could still end up with 16 grams of total weight difference for 20 spokes.
Thanks. Any chance of the back wheels review?
Amazing review !
Cheers mate. Just making stuff that I wish existed back when I started riding.
"What Hi-Fi interconnect bullshit" hahaha
Wonderful effort buddy! Did you lay your hands on the wheels through retail or...?
Cheers mate. Nah, the rim on the Dura Ace was wrecked in a crash, so I was swapping the Dura Ace hub into an Ultegra wheel for a friend. Decided to take the opportunity to make a video when both wheels were in bits
Great video... thanks!
I have the Ultegra 6800 huns with a Mavic CXP Pro and DT competition spokes.
If I had to parts of the hubs I would take dura ace axle and bearing with ultegra hub shell. what about you if you mix and match?
I meant pick hub parts and mix and match hub parts sorry for my bad typing.
9000 vs 9100 comparison?
shouldn't the Dura Ace hub spin easier due to the polished up and cone?
Possibly yeah.
Great review.
You are awesome ! . how wonder how they compare to lower end shimano's. If can analyse the other parts like this.
As an industrial/designer engineer, I can say that many of the Ultegra parts look substantially more robust than the dura ace parts....pay less for better parts?
Have you tried either wheel? I have the c24 on one bike and thinking about getting a second pair for a second bike but then was looking at ultegra to save ~$700
Great video
will the ultegra fit my 8speed campy casette and 23 gatorskins ?
If the tires are 700x23 then yes, but the cassette will not.
just a big detail was missed...bearings, cup and cones on dura ace are made of titanium and on ultegra of steel... so its made those parts litlle lighter but lot of more durable... only 30grs difference but huge durability more... great video..congrats!!
+Roberto Steluti is that right? Didn't know that. Cheers for the info!
TheDarkInstall ... 100% sure that those parts are made of Ti, I'am product coord of Shimano Latin America, located in Brazil..😉... the hub of the dura ace wheels is the same thatnow are equiping the shimano PRO TT wheels, same that team Sky, Giant Sunweb and others are using in the pro tour... fully Ti... precious infos..👍...
do You know if there is any difference between 9000 and 9100 wheelsets?
Difference size/count balls and races. The Ultegra should theoretically have a higher axial load potential, but Dura-Ace should theoretically have a higher RPM potential (which usually translates to less resistance). Probably no real difference in radial load potential between them.
The advantage between the Ultegra and Dura Ace is at best psihological. Great video ! I ride Ultegra :))
This is a great review. I'm nitpicking here, but since the spokes are the same, less time could be spent talking about those and more information about the pros and cons of carbon laminate or aluminum rims would have answered every question I could think of. As for the last question about winning a race... a good argument could also be made that lighter weight equals faster than aerodynamic benefit gained from a minusculely (is that even a word?) deeper rim, but that would require more technical data than my small brain could handle.
Awesome review though. You obviously know your shit ;)
Why can't I find these sexy Hubs? I can only find an alternative version that isnt as sexy. Does anyone know how these versions are called?
i know what I'm gonna buy tonight!
An 8-ball and a litre of Jack Daniels?
TheDarkInstall is there a problem with that?
Absolutely not. How do you think I get so many KOMs?
The philosophy behind Dura ace is called marginal gains.
im quite surprised that the rim weight difference is only 30g.. after all that whole carbon laminated thing was for saving 30g each wheel? changing butyl tube to latex would do better. thats just disappointing
What about the surface hardness of the bearing races? A superior grade of steel would allow more hardness/wear resistance/fatigue life. Bearing balls- grade 10 gives lower peak contact stress than grade 100, due to lower variation in size/ovality.
By way of example, Shimano makes numerous different M10x9 bearing cones, all interchangeable, all with different part numbers. Check out the exploded diagrams on SI Shimano.com. The cheaper ones go pitted and wear out much faster than the higher-end ones. This is why Ultegra is more cost-effective than Sora, if your habit is to give the equipment a good hard thrashing- you spend less time replacing parts, and run a lower risk of dropping time in a race, through worn parts, if you use Ultegra. Dunno about Dura-Ace- out of my league!
Subbed!
I'm going to sell my dura-ace c24 rims after watching this 😂
Trevor Costello Haha or find a smashed up pair of Dura Ace C24 on eBay for cheap, and swap the axle parts into an Ultegra 6800 wheel set.
That is an excellent idea!
not detailed enough...
Hi DarkInstall. Interesting video, thanks for creating it. For some feedback if you like, if you would like to go super pro on detail and valid comparisons, please include the shimano spec sheets to hear what the manufacture release:
productinfo.shimano.com/#/spec/1.8
And, if you have any post production luxury, I would love to see numbers edited overtop 2 comparing items (ie: weight etc.) Keep up the great work!
What does a bored wheelbuilder stuck at home with Covid do to entertain themselves during self isolation? Come and watch THESE videos that's what!
Ultegra rims are muuuuuch stiffer!!! I used both and ultegra feels better in the corners.
Nice video byt you should buy a better scale.
+Michał Zbytniewski Are you trying to tell me that the washers don't defy physics and weigh 0g?
Exactly :)
I like weighting sub 10 g parts on a scale with a least 0.1 g precision. Also it is not a bad idea to weight spokes in bulk of 10 pcs.
This kind of content is COMPLETELY USELESS, if you dont use a scale with 3 decimal points!!! When 2 pieces are 2 and 4gr, it´s probable that the 1st was 2,99 , and the 2nd 4,01gr , so here is the diffference 25%, instead of 50%, that your scale lets you assume... Good work, but useless without a better scale. It´s like trying to make a most precise weather estimation, but at the same time, refusing to draw your thick, black window-curtains aside...
Shitty rims. None have aero pointy shape
Шимано колеса и втулки - говно. Они их не умеют делать. Я проездил с десяток лет на шимано, постоянные проблемы, то настроить, то люфт, то шарики, то оськи, то спицы, ничего нет, ну его нафиг. Как поменял фирму и поставил на промах - сразу все забыл как страшный сон. что ультегра, что дюрейс, все говно собачье, рукожопность производителей.
Hi boss, do you know the ball sizes for both front and rear ultegra hubs? I assume the rear hub has 9-ball per side and 1/4". What about the front hub ball size? Thanks.
Should have measured them. The answer is, therefore, I ain’t got a clue. Sozzzzz