The Fastest Gravel Bike In The World? NEW Ridley Kanzo Fast
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- Опубліковано 12 вер 2024
- Gravel cycling is a lot of fun regardless of what speed you're riding. But, despite this, everyone wants to cycle a little bit faster, don't they? Regardless of how fast you ride, aerodynamics play a huge part in speed - better aerodynamics let you ride your bike faster and further! With this in mind, Ridley have released the Ridley Kanzo Fast. Only 4 watts slower than their dedicated aero road bike, the Noah Fast, this might well be the fastest gravel bike in the world.
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aerodynamics or not, how good does this frame look? i really consider merging my gravel and road bike with this. just have two sets of wheels and be done.
You better not get the version with the Classified hub then 🤷♂️
@@TobiB89 Why though (genuine question)?
@@discovolante91 As I understood it, the classified hub is only available at Ridley with a complete bike as of now. I don't think you can just buy another wheelset with the hub.
Exactly the quandary I have now. I have mountain bike I don't really use apart from the odd gravel path or benign Forrest lane. I want a new road bike was thinking of the TcR Advance pro with built in power meters. But also want to do some light touring next year, and only have money for one big upgrade. Argh... Also just watch Wales in one day on the TCR that can take 32mm tires. What do I go for
PaOdin plays VR always a tcr my friend
Love that Si is back!!
Even though it seems that he has been relegated to GCN's advertising department?
I can imagine that if the rear hub proves to be durable the riders in the Dirty Kansa will absolutely love this bike or others like it. This bike hits the sweet spot for the current evolution of gravel racing.
For us Gravel bike lovers, that's a Super Nice Bike. Seems the best videos out of GCN are Gravel related ;). I am very keen to learn more about the Classified shifting hub. I'd particularly have wanted to see it on a 12 or 13 speed Cassette giving it an almighty range to climb anything. That Ridley bike looks awesome too.
"I had to slow down for a dog, I killed it.."
So you have a additional meal.
That's what happens when you take free speed.
@@williamwallace3780 And ignore full stops.
@@williamwallace3780 when you're a professional cyclist speed is always free and delivered to your door by the team doctor.
James Smith
100%
lovin' that 1x w/ the option of internal gears in the rear hub! genius!
The Sachs 3x7 and DualDrive systems that were around 20+ years ago worked well, although they were heavy compared to a front derailleur. It will be interesting to see whether this new internal hub, which is essentially an updated, wireless version of those older hubs, is more of a commercial success.
I really fell in love with the looks of the Ridley bikes. Looking forward to buying one, unfortunately, they are not so widely available in Germany and have a long waiting time.
I assume they are even harder to get in Korea, where I live. Other than that I commented here because you said exactly what I was thinking!
I bought a Ridley Helium X back in July and that thing rips! I love Ridleys.
Send us an e-mail and we'll look for a dealer for you 😉 marketing@cyclingfactory.be
Just ordered a first gravel bike with their Kanzo line. Having to wait till November for the groupset here in the UK
Almost feels like Si needed to do this video to recover from the slow riding tree hugging one
4
I think GCN should do a video Fastest Gravel Bike Ridley Kanzo Fast vs Cervelo Aspero!!
And the 3T exploro race max
"Up to 17w faster than an ordinary gravel bike" seems like one of the most tenuous marketing claims i've ever heard.
Haha Ikr. Rather specific aswell not 16watts not 18watts... 17watts
For saying things like "x 'Watts' faster" in public one should be banned from any public appearances for life! Even though power is a product of force multiplied by speed, speed is still measured in distance devided by time (meters per second or kilometers per hour)! "X Watts faster" is coming from the same idiots claiming "so aero, you save x seconds when going at x speed for one hour". No idea about basic science? Get a job in marketing.
@@einundsiebenziger5488 I heard you tried to get a job in Tour de France. I also heard you didn't get the job!
Intro is a bit misleading Si. You've previously mentioned the Cervelo Aspero and the 3T Exploro. Both of which are aero gravel bikes.
That said, this Ridley is badass and you're as brilliant as ever.
Go easy on Si, this was clearly a partially scripted infomercial.
Hi Mike, I’ve ridden the 3T Exploro plenty, but as I said in my intro, I’ve never seen a gravel bike quite this tailored for aerodynamics. The 3T makes allowances for much wider tyres and doesn’t have internal cables for a start.
If gravel riding is too slow for you, they have this things called paved roads, where you can go faster. They were popular for riding up until about 5 years ago 😂
I know this a late response, but the one thing that sucks about paved roads which a lot of us don't like: stupid, inattentive drivers.
Cracking tag line Si! "Fast bikes can still go slowly, they just go a little bit less slowly than slow bikes".
Especially when I'm on them 😜.
I love that every manufacturer is aiming for a sort of fast Allrounder - bike. Love the option for mudguards. I hope for a more 80/20 towards a road spec version of this (this seems to be more on the gravel side of fast).
As much as I admire real race mashines, the majority of everyday riders I think will have more usecase for an „all bike-path“ tarrain kind of bike, from commutes to weekend tour guys.
Had the OPEN M.IND in my head For a next Allrounder, but this could be a successor
Look into the allied allroad as well!
Michael Reagles
Oh Nice One.. just USA to Germany I dont know. But it’s kind a what I want a comfi road bike able to go soft gravel and forresty roads
Man ridley has evolved a ton, ive got a 2006 helium isp at home and its fabulous
what's next? Riding Time Trial Gravel bikes in skinsuits
I like this! Gravel time trail, exciting like it sounds.... and also don’t forget gravel stage racing to make it more gnarlier...
The aero will arrive in montainbike one day for sure
yeah sure xD, listen at 10:20: "like it or not, aerodynamics is actually a thing" GCN 2020
@@simonpepin8755 may be give it 20 years. It took that long for disc brakes to make the move from mountain bikes to the road even though they are vastly superior to rim brakes in every respect.
that's exactly what some gravel racers run, TT bars and all
got a new gravel bike 2 weeks ago, so couldn't care less about this one, but i enjoyed the aerodynamic and gear nerdery very much. thx
I love the sound of Disk brake howl in the morning.....
Bike looks pretty cool, love it. 42mm tyres are enough for my rides in the woods. Lookin forward for more info about this Classified rear hub thing. ...there is no weight penalty Vs. 2x front derailleur, as far as I understood? Cheerio😃✌️
Glad you finally got the kit, Si! :-) It looks sleek in black.
At last, a genuine GCN-video once again, thx Si !
Interesting, sexy bike. I wonder how efficient the lower internal gear will be. I use a Sram Automatix 2 gear internal hub and the higher ( ticking ) gear seems to suck up some power.
You 've forgotten to mention one thing : Belgian chocolate, the best in the world!
@disadadi I can't compare but being a Belgian I strongly doubt I would ;-)
If I get my hands on Finnish chocolate I'll give it a try though!
Belgian waffles add Canadian maple syrup.
15 miles into my ride yesterday I got chased by a chihuahua. He was a fast little devil. Had to stand up and pump hard to pull away.😂😂😂
Could have got the same reading the marketing release. Literally one ride with wind noise and then the spec sheet. We watch GCN for something interesting!
I'm waiting for fully integrated cables to hit mainstream for road and gravel, combined with a few eyelets for bikepacking. So far my Hook EXT with two wheelsets is my jack of all trades, but with steel frame and fully external routing it's definitely neither very light nor aero
"... I had to slow down for a small dog. I killed it." 🤣🤣
ultimate winter bike me thinks, especially with mudguards and dynamo lights
I am not sure how I ended up watching this video, I am not a cyclist (not really for maybe 30 years), but are dynamo lights really a thing? Really? The 70 year old technology, dynamo lights? Really? Or is there something else now called dynamo lights?
@@MrEmbangweni Check out the Son dynamo hub. It's called a dynamo, but it replaces the hub of your front wheel, and has nothing to do with those 'press-into-the-tyre-thingies'.
That is a beautiful bike! 🤤
This is a great looking bike! I wish it had a standard front derailleur mounting point and threaded bottom bracket, though. It would be an absolute must buy with those.
Interesting tech in the hub. Waiting for the full in-depth review.
This kind of fast gravel bike is what I need, where I ride. Out of the 114km route I took the other day, the absolute highlights were the only sections that I would consider gravel riding, and only made up about 25 km. The other 89km is pure road bike but still fast descents and tough climbs and epic.
Somewhere in Scotland?
@@dlevi67 I would love to spend time with my bike in Scotland! But no, I spend most of my time, this year, riding in the mountains, gorges, valleys and the plateau and descents above the eastern Range ( 1000 to 800 meter descents to the sea) Due to steep mountain sides, heavy seasonal monsoons and in years like this, many typhoons, the government has paved over most single lane forest and remote valley roads ( there are fire roads that are off limits... I need to organize some event rides!).. These are rough concrete pavers but after heavy rains the side roads often get washed over with sand/silt/clay/ gravel, after recent Typhoons, land slides would have required all but pro road bikes to push over .
I run 35C touring/gravel tires ( Swalbe Marathon greenGuard 700/35c the past 3000km.. Great grip and excellent rolling resistance) as a comprimise as some of the smooth paved/ tarmac descents are the highlight of the week. I am still looking for a route that will motivate me to buy a second set of tires at 42+C ! There is one hiding somewhere out here... Once I find it I will need to finally change my cassette, no doubt;-)
@@colinmcdonald2499 I could tell you about a couple of these in central Switzerland... if I had had a pizza dish instead of a sprocket it would have not been enough. Enjoy the coming summer, and stay safe!
@@dlevi67 pizza dish! Haha. I can only imagine the central swiss alps! I need to pack all or 80% of my water on some of my routes. Small correction: Coming winter :) I will put my bike away in early/ mid November when skiing begins. My Head iSLRD (FIS) skis are waaaaaay above the level of my bike at a lower price! Sorry , I am too heavy of a skier for Stockli ( the pride of Switzerland) ;-). Can you find me on Komoot? I have no one to share my rides with.. It would be cool to see the " pizza dish" climbs in Switzerland!
@@colinmcdonald2499 Aargh! Two wrong guesses - first went Scotland (because of your name), then Oz (because of the eastern range and monsoon) - hence the mention of summer! Enjoy the skiing (and my envy), then! With COVID I don't know if I'll get anywhere near snow this winter.
Very happy to share rides on Komoot - just started there as I'm waiting for my new bike - but alas Switzerland is no more: I came back to the UK three years ago. On the other hand, my old MTB is no longer the best thing for my rides which seem very much like the one you were describing (60-80 km, 75-80% tarmac), except in a far less scenic landscape: the highest hill around here is just below 300 metres.
It is beautiful, but I'm interested in seeing how that hub in the back holds up to drivetrain efficiency vs a 2x system. Beautiful looking bike though.
Would be excellent for CX also
If I recall, it's only maybe a watt or less less efficient than the most efficient 2x systems.
That's such a good idea having the hub gears. Probably 99% of times my chain came off was because of the front derailleur and swapping chain rings.
Wow, just for the look, I may buy it. Using a Cx bike as gravel today for daily training and being able to cross by the forest... I love the idea of fast gravel bikes !
I had a Kanzo Adventure with which I got along very well, and now I have ordered the new Kanzo Fast ... I fell in love with this bike. Look wonderful! I believe it is the perfect compromise between Gravel and racing bike. With two sets of wheels you have every possibility. I'm just afraid of delivery times: I hope they are not too long in Italy.
Yes, it looks beautiful and aggressive; I guess the only issue is that the max tyres on 650b are 46mm which is less than your Adventure. Are you buying the same size in the Kanzo Fast? I noticed that the geometry is quite different. I tested the Adventure a few days ago but unfortunately they only had a size Medium and I'm a Small or possibly an Extra Small. I've been looking at this and the Exploro Racemax. Delivery quoted for UK was 5 months...but if you just buy the frame then it's only 1-2 months.
Andrew Allen I ordered an extra size. I took a S for the Kanzo Adventure but now I opted for an M being the S on the limit of my height (I’m 1.78 height). I noticed the tyre issue. The tires are smaller, but in the end I do not need more than 700x40 mm for my use. Anyway, Kanzo adventure is really a wonderful bicycle! She was a great companion of adventure. I only hope that the new Kanzo Fast will come to me at least for Christmas as I ordered it at the end of August! 😅😅😅
Carlo Calligaro I’m 1.73m and the sizing calculator recommends I’m an XS but I think an S would fit me better. Yes, it depends on what kind of riding you do; if very rocky and muddy then a wider tyre is helpful; I look forward to hearing how you get on with the Fast; it’s such a cool looking bike 😍; I haven’t decided what I’m going to get yet, I might even get a used gravel bike as the waiting list for new bikes is crazy at the moment.
Andrew Allen 3T is a great bike, but it’s also most expensive than the Kanzo adventure... And il 3T is less comfortable... Anyway 2 great bike...
Carlo Calligaro have you ridden the Racemax then? What did you think?
#GCN #GCNTech I'm excited to see "aero" coming to gravel also. With your help I finally settled on the Canyon Aeroad and abandoned the pursuit of the weight weenie. Thank you #GCN for the expert advice on the purchase of my road bike.
Don't want to stir the pot but isn't the Aeroad quite competitive in the weight department as well? :p
@@tobiasbouma4071 It doesn't hurt, no? :-)
Shame that wasn't an unboxing: would love to win of those. I'll put it on the list of 'if only' bikes
Not in the least interested in anything gravel, but Si showcased this bike very well, and I just couldn't turn Si off when this fell into the YT feed.
Great channel, great videos! Quick question to which I cannot get a straight answer... if a gravel bike is a cross between a road bike and a mountain bike, what is a hybrid bike? I've been told countless times that a hybrid bike "isn't the coolest bike out there" because it's a cross between a road bike and a mountain bike, but a gravel bike is great because it's a cross between a road bike and a mountain bike.
So... what is the difference between a gravel bike and a hybrid bike? My best guess is it seems that the hybrid bike is set up closer to a mountain bike, typically with a suspension front fork, often a suspension seat post, and MTB style straight handlebars. Where as a gravel bike seems set up closer to a road bike with a hardtail, stiff frame, and non-suspension front fork with drop style handlebars. Both seem to have 38 to 40mm tires that are somewhere in between road and mountain bikes tires. If that is correct, would a hybrid bike be a better choice for a rider that does 60% trails and 40% road... or even 70% to 30% trails vs asphalt?
I guess it depends on the trails really. If they are rutted and the rocks are large or the trail particularly bumpy with roots and occasional drops and jumps, I'd say go for the hybrid. But if your trails are flat with rare obstacles like the former, I'd say go for the cross bike. As far as asphalt is concerned, the cross bike will obviously be quicker as there is no power loss due to squat and the cross bike will be much lighter as there aren't any extras like shocks and the like slowing you further with much higher weight and bad aero. I'd say the only benefit to the hybrid on the street is comfort, as well for the trails. But for speeds sake, I'd sacrifice comfort to that degree any day for speed. Plus you could always go bigger with tires and still be far lighter than a hybrid and gain a little extra comfort.
a clean look is always best
Until you go to service the cables!
@@BoogieBrew sure, real things
mine mine mine :D i realy love the look of this bike. It looks so fast and clean.
I can hear Dan's heart literally shattering to thousands of pieces seeing Si wasting a beer on the ground..
that ridley was lovely
Thanks from Brussels for all the love of things Belgian :-) (amazed you didn't mention chocolates or waffles)
And Eddy Merckx!
And Trappist Ales!
"Fast bike can still go slowly." - well said. 😀
I hate plastic frames, I hate disc brakes, I hate aero, I friggin LOOOVE this sick friggin bike!
[edit] I wrote that at the beginning of the vid. I still hate disc brakes, especially when I hear that “herrnk”. I mostly ride SS/fixed and already have a perfectly fine geared bike that has hydraulic 105 discs and room for 32c tires for my lazy days. This thing is just so much dork, all in one, so very well done... I want it, even just as a collector’s piece. I want two: one to keep in a glass case and one to beat the crap out of in the trails and city streets.
Ridley Bikesxare the best...thx for the test!
How did you leave Eddy Merckx off your list????
This is the first gravel bike that looks good to me, but I still don't get gravel riding) I guess, I should try it prior to judging)) The problem is - I know for sure, that sitting position with road handlebar is less stable, than a normal flat bar, and you don't want to lose handling stability on a loose surface. And secondly, you can fit 28 inch road wheels with gravel tires to any mtb hardtail, even older 26 inch frames will take them. But I guess I'm overthinking it) Gravel has some style to it, for sure.
Very cool. See nothing in it over my 3T mind you, but very cool none the less.
Si... speed comes in wraps, not carrots... and it's not free, unless you've got some good friends.
You mentioned once that you need slot of high calorie foods for the longer bike rides. You should try chicharone ( fried pork fat it is high in protein and high in calories plus it can be small
That’s all well and good but can you attach panniers and a handlebar bag?
My first bike is going to be a Ridley feniks sl disc, my mom work together with the company ( the company she works for supplies their printers) and if corona wasn’t around I would have been able to go there and ride in the windtunnel
lol cool story bro
Si can one of you go to Sturmey Archer and see what they are thinking and gander at their kit! just as they are English.
They were English but 20 years ago Sturmey Archer was sold to Sun Race and production moved to Taiwan.
Awesome Video 👍🏻
Can you do a video about hybrid and/or touring bikes?
Finally not nutrition rerun for the fifth time! The bike is not for me, but this hub -- this could be I hope will be a revolution. This is a killer approach.
I am looking for all capable aero bike so spot on video for me! Mission - only one bike.
Bike is only fast as the rider can pedal it
Unless it’s an ebike ;)
But a rider on an aero bike will be faster than the same rider on a non-aero bike, all else being equal. That's the real point. Another and perhaps more interesting point for slower riders is that slower riders will save more time on an aero-bike that fast riders over the same course.
A good ol' its all about the legs and lungs anecdote
@@dambuster_33 I don’t know man. When I’ve emptied the tank on a 120km+ training ride I still get delivery riders on an ebike flying past me on the way home 😂😂
That bar tape wrap is really clean with no bulk behind the shifter. Is there anywhere I can find the guide to replicate the same? Thanks!
I watched until the end in hope of getting more info on that rear Hub and not one word was lost on it. Does that mean it is actually not ready?
That bike look amazing!
This truly has me interested as do it all bike.
I wonder how much watts that rear hub takes up compared to a 1x and a traditional 2x set up.
I drive my commuter with internal gear hub every day to work, love it, best system!
We LOVE this bike!
My Marin Gestalt 2 2019 is feeling pretty creaky and treacle drenched right now... I'm pretty keen to upgrade soon... but 98% of my riding is road based anyway... hmmmm... this is a beautiful bike. You are a lucky sod for getting to ride this simon.
very stylish the video @1min24 when camera is turning on itself
"...Aerodynamics has a benefit at any speed" --That's why my spin bike has to be aero.
TheJmbf10 And make sure you wear your tear-shaped helmet as well...
My favorite gravel bike.
Surrey Hills near Guildford? Love that place!
"exactly the same time!' i laughed
Aerodinamics is a thing for sure. On this order:
1 - Rider position
2 - Rider clothes
3 - Bike
There are no tangible differences between tubular frame bikes and aero frame bikes at speeds below 40 km/h. So, an aero gravel bike is pure waste of money in terms of aerodinamics. But if you want to make "one for all" and your average road bike speed exceeds 40 km/h a aero gravel bike will help you on the tarmac. Although a pure road bike puts you in a more slammed position. I
Nice Vid, thanks!
When i first saw the Fast i thought 💭 Man!!! I need to have it!!! BUT, there are many thinks i don’t like. You can’t chance anything, because the bike is not made for personal options. You can’t change the bar, you can’t change the stem, you can’t change the seat post and so on. Next big minus IN MY OPINION is that you can’t choose it with two chainrings. All in all i think i go with the new 2021 Kanzo Fast. For me it’s better to have options in changing things...
My local gravel loops average 12.5-13 mph average. Aero would come into play on the tarmac connector segments, where I hit normal road speeds.
Gorgeous bike tho.
Nice to see more manufacturers doing like Scott with integrated cables in the handlebar
I
Thx for this review. On a separate subject have or will you review BOLD’s unplugged bikes? Thank you.
If you have to design the tubing anyway might as well make them aero...
No mounting points on the fork is a little bit disappointing.
Isn't fastest and gravel very subjective though? Fastest over which terrain.
Ok so know we reached the point where there are gravel bikes for flat terrain, hilly terrain, forest tracks, fine gravels, thick gravels, unregular gravel, 20 % tarmac, basalt type gravel, gypse type gravel, US type fire roads, Autsralian type fire roads, Strade Bianche type...
Have to keep the hustle going...
@@simonrano8072 everything for the n+1 mate ;)
@@juliann2641 i am an proper N guy. Still using a rim brake cross bike as a gravel. Works as it meant to be : perfectly fine.
That's a valid point.
Great Review. What is the size of the tested bike and your height?
Great video. The hub has me excited. Went 1x for fun on the cheap and it was great. Then I got serious and spent big $$$ on a 3T - 9-32 cassette and xdr driver and was really disappointed as it was so much louder than anything Shimano, so felt I had to go back to 2x on my good bike. Could this be the amazing new 'must have' hub in a few years?
How good would this be on the road compared to an endurance bike? If you fit smaller tyres?
I have two sets of wheels I use on my Ridley road bike. My nice ones, Hunt Carbon, and my winter wheels. Shimano Ultegra. I could just get a third set of wheels? Gravel type wheels? An interesting thought. Thank you.
Is the internally geared hub lossy? The Shimano’s I’ve ridden are noticeably draggy, like a light brake rub on all the time. If your geared hub goes a long gravelly way from home, you’re SOL. So reliability better be solid.
An electronic version of an old idea, planetary hub plus derailleur. Even now, you can get a Sturmey-Archer three speed hub that will thread on a 9 speed cassette. Maybe I should do that with my drop bar 3-speed.
What a great looking bike!
How does this bike compare to the 3T Exploro?
Railing? Always, love to ride on converted railways.
If I could have a front mech on that I'd buy it in a heart beat - but they don't so I won't.
Currently in a mid life not-really-a-crisis-but-want-something-different moment. I currently have a Cannondale Supersix HiMod, which for blasting around the roads for upto 100 miles is awesome but part of me wants to do stupid long rides and go off road a bit during long rides too, so more road bike that can handle offroad rather than dragging my MTB out to do gnarly stuff. A bike that I could stuff a set of Zipp303's or similar on, maybe rig some mudguards on it and go Randoneuring on it or just have some fun on the road on a Wednesday night with the lads doing dumb things like sprinting for signs.
Maybe one of these with a Powershift hub?
Well duh! Watched the rest of the video and heard about the Classified hub.
Looks a nice bike, but much more aero than a 3T Exploro? Good luck trying to find that bar/stem in your size. I'll trust that steerer is strong enough.
I'd say it's only low single digit watts better. Still love the look of the Kanzo but it is more restricted in terms of 650b tyres.
I wonder how much is left of the aero with all the mud on it :-p I configured this bike a few weeks ago but the 5k pricetag was a bit too much. And also i can't really make up my mind between getting a mountainbike to go with my 2007 roadbike or get a new gravelbike to also use on the road like this one.
Nice Video and what a bike! But is ist really comfortable for daily riding? Racing is Not all..
Sure it's not a bad pick at all for all day comfort!
Great videos! Great bike!
Nice video, is there a ride weight limit on this Ridley?
Top bike and a very new shift technique
Aero gravel sounds fun
Gorgeous bike.
On most bikes, other bikes, what size does Si ride? He looks like he likes to really size down.
Wait... The rear internal gear hub??? My Tern X30h folding bike does have one to make it 3*10 while running a “1x”, it does do the job great. But sram does not make them anymore, almost thought it’s obsolete now...
It's a bit different from other geared hubs; as far as I know none uses planetary gears (which can have lower losses, and can more easily switch under load than other types of gearing arrangements). The real question for me is reliability, and it's definitely too soon to answer it!
dlevi67 I believe maybe your information is not quite adequate? (Or mine if I’m wrong) There do exist gear hub with planatary gears. And I believe mine (SRAM dual drive 3) is just one of them... check this link ( www.triketech.com/Drivetrain/dd3.html ) and it explains how this thing works alongside the chart. The durability is not a problem since it’s sealed, but weight is a little problem if you are going competitive. My tern x30h folder is basically a compact road bike, I ride almost equal fast on both bikes, but the rear hub do come a little heavy (970g), make it 10kg. Shift under load or still is okay, if you are interested in playing with some internal gear hub, give it a try, it’s cool and can provide you some good gear ratio.
@@xuchenglin6256 I didn't know of this one - so I stand corrected, although if as you say it's out of production, then maybe I wasn't completely wrong...
I don't think that the question about reliability is answered - yes, planetary gear trains can be reliable; is this one? It depends on how it has been designed, engineered and manufactured, and I haven't the foggiest about any of them.
Since you mention weight as an issue: Classified doesn't quote it explicitly, but they say it's "comparable to the difference in weight between a Shimano GRX Di2 2x and 1x train + rear hub", so around 500 grams - much lighter than the SRAM/Sachs one (which however is 3 speed, so a bit more complicated) classified-cycling.cc/product/
dlevi67 yes as I said I almost thought the era of internal gear hub has passed...
As to the reliability, those internal gear hubs including others have already exists for a long time, mostly used on touring bikes, at that time no gravel yet... and trikes, and folding bikes. They build some good reputation for zero mantainance and good durability and reliability, almost impossible to see a failure, the downside is if they were went down, it’s impossible to fix it on the road... A little dig into the old internet you can find a lot of information.
Worth mentioning there’s also a brand nuvinci that makes gear-less or “CVT” gear hub which within the range you have unlimited gear ratio choices, definitely you could find the best one suit you for every scenario.
My point is if you are interested, why not get one and make a build? Those things are not main stream in “cycling” world but it’s cool. Now you can still get the sram ones from eBay or something, with a relatively cheap price. Those new classified ones are cool but I believe it’s not gonna be wallet friendly. So why not just give it a try with minimal cost, it’s almost the same from a use perspective. The sram one can be paired with drop bar STI levers, as I believe with most others, my folding bike just runs this setup. Those things are kind of unique but could be interesting and fun.
@@xuchenglin6256 You seem to be missing a point here: the fact that _some_ planetary hubs are reliable does NOT _in any way_ mean that this one is. The basic design of a car has been the same for about a century; some cars are very reliable, others break down every other day. It comes down to design (in detail, not the general principle), engineering, and manufacturing - we know nothing about these for the Classified hub.
CVT has other problems (e.g. losses). And to be honest, I'm really not interested in spending hundreds of £/€/$ (it's not "relatively cheap" - you need to rebuild a complete wheel, and change cassette, chain and front rings if not cranks and BB) and hours of time for an experiment when my standard 2x (or 3x for my old MTB) works perfectly well for my purposes.
I guess 'aero is the king' has become quite uncontroversial fact among bike manufacturers, so maybe in the future all frames will be aero frames with wind tunnels and CFD being a norm for testing any new design.