Suntour 38 DUROLUX | Deep Dive Reivew
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- Опубліковано 5 кві 2024
- Suntour 38 is a different type of suspension.
Tools I use to use suspension amzn.to/41NwxOi
Suntour fork tools
27mm wrench amzn.to/3xkKxUx
oil injection tool amzn.to/3TIaTHx
Fox oil for lowers amzn.to/3xmk49f ( What I used) may be wrong
Grease for lowers amzn.to/49t4RAl
only 2 tools to drop lowers
socket set amzn.to/3PLzzO8
dead blow hammer
amzn.to/4alxu3Z - Спорт
All I ask is you watch the entire video before commenting
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Naaahhh you suck!🤣
Durolux owner here. No mine does not sound like that. I’ve owned quite a few - never had one make that sound.
Thanks Jared, I figured something was wrong, but I swapped damper oil at end of the video, and full serviced it, and the fork was pretty darn good. No one will get to the end of video, but they will read comments 🍻
@@OtterMTBtech i catually do both BUT depends, since you sound like you know what you´re doing, i was curious you fixing this thing :)
Thanks for creating content!
If you really want to know, how does a fork perfom, you must service before use. Even new ones.
First you should check the lowers and the uppers with your front hub. It will be day and night if you shim (DIN988) out the hub for the less resistance.
If it doesn't help bushing burnishing is the way to go. But that's expensive toolwise compared to the shims. That's the hack that everyone can do at home, who's confident enought to take a part their fork.
You need to gut out the fork. Completely. Just the lowers (no foam rings, no seals) and the stancions into the bikestand. Actuate the fork and see how much resisence it got by the lower bushings. Than add you front hub (wheel) and torq it to the max of the axle. And repeat the the actuating process. If you feel resistance, add shims both sides. These shims comes in different thicknesses, 0,1mm, 0,2mm, etc. Put shim between the dropout and hub or under the dustcap (depending on your hub bearings and your taste). If you need less widht you need to sand down the dustcap.
If this is ready, you can service your fork. This method will increase the fork performance to the max and depending on the front hub could result in a day and night experience.
For the pro solution check out this guy: www.youtube.com/@olivermajewski/videos
I second this . I have a rockshox recon and brand new out of the box it worked but there was no gradual ove time oil purging through the seals (wich is happening after service) wich is telling me the fork was likely underfilled from the factory
Sadly no one knows this, and 90% of people won’t get to the end of this video and find out that the fork was awesome after damper oil swap.
Totally agree tried to watch that guys lower leg video I could barely follow it , but thanks for comment
@@OtterMTBtech The funny part is that high end, really expensive forks can be shit. Back in the days Fox forks had a tendency for bushing play, prefox Marzo had the same issue, recently got RS issues with this. So they make the forks stiff. This is the deal against warranty issues.
The fork is just a part, of the front suspenison system. Which contain the front hub. If the dimensions doesn't fit, it will be fucked up (ofc on a scale).
@@donavinnezar Low end RS stuff is notorious not haveing enought lube in the lowers. Higher ends are better bc they operate with much more lube.
Last Rockshox fork I dropped lowers on had no oil. ‘23 Lyric had such tight bushings it felt like they were stuck when checking sag . All valid there 😎
Did the durolux fork feel as if it had bushing play - Mine does after only 250km. I've been reading that it could be due to cavitation in the damper.
You said it's a "dry fork" inside and was carving up the seals.
I've got the 36mm stanchion version and it's a grease-based fork. You put grease on certain areas, and try not to block the air spring equiliser groove. The rear injection holes are to inject 1mm of oil inbetween lower leg services, until you reach 5mm (write on a log on your workshop wall, or in your phone) and then you need a full lower leg service, stripping, cleaning and regressing.
There's a new Bolany fork out 4 months ago (34mm stanchions in 27.5 or 29". The 27.5" is 580mm A2C and advertises 175mm travel, but mine only reaches 166mm and as a result the air pressure is far lower than the guidelines. Also the sag indicators on the stanchions have been printed upside down so completely useless even if I had the right amount of travel) Anyhow, their screw holes they say are for lubing the seals between services. The Durolux injection holes I'm not sure. Seals? Or lower legs in general, including bushings?
The noise that used fork was making was atrocious. It's supposed to be a fairly quiet fork. Knowing how the fork is supposed to sound, I'd be thinking you needed a new damper, maybe even bushings and seals if the fork had been run dry and carved up inside until particles entered the damper and wasted it
I've not taken the top caps off but interested to see there are tokens in there. You can Google them for sales, but in the country I'm living in spare parts (including different length air springs) are impossible to find for RS or Suntour. I'm going home in summer and will try to get some parts bought to take back with me.
Does you bolany fork felt better after injecting 1ml of oil inside the screw holes ? I have a chinese air fork too and it was really good the first time and started to quickly fade after some time. I wonder if injecting some oil there would help since it looks pretty easy
It's brand new. Two rides in. Haven't had time to let it go dry yet. I did inject it with 1mm of suspension oil on each leg for the second ride just to check if it was dry out of the box. I'd also dropped the air pressure at the same time due to the stated pressures being wildly wrong. Small bump response isn't good given it is so cheap. Ram into a kerb and it'll work okay. No topout with the damper adjusted appropriately. Action feels like a Manitou Markhour with the Kwiktoggle damper. Only time will tell.
While the damper not working properly probably had a huge impact on harshness, the fork also seems to be sucking down when you release the air pressure! Did you make sure that the positive and negative air chambers are able to equalize? Suck down can also cause harshness
It was a used fork I fully disclosed. Maybe it had excessive wear and tear or this product doesn’t age like 🦊.
The damper oil had no cavitation when j took it apart.
The adjustments hardly changed the ride before and after
There was no signs of excessive grease or debris clogging the air spring.
It rode so good after a service, I started swapping out damper oil on my other fork DVO 38, same deal hella plush completly different fork after damper oil change. DVO let me know they maybe not Suntour use 3wt oil, that is bulk oil and who’s knows how good that is
Someone else on comments had the same issues. Harsh or diving. That’s prettt common on cheap forks, Zeb R Domain etc .
Durolux owner here! Ive always loved suntour forks “the higher end ones” Ive never had rattle issues before but that chirp noise is normal for suntour forks as it was probably custom tuned. My suntour fork was custom tuned and had that chirp noise and personally i loved it, never had rattle issues like you had which is very weird
Is it air spring chirp? What do you think someone else here has the same noise they can’t get rid of it might just be need new air spring
@@OtterMTBtech its one of those reasons but its also the stansions rubbing against the stansion cups, if you have your fork custom tuned in a way sometimes the airspacers can also be an issue rattling! I had that issue on my dh suntour fork but i fixed that problem. The chirp noise means the fork is working how it’s supposed to without any play in the lowers too
You need to clean out the lowers really well and probably replace the wiper seals, normal skf 38 mm should fit. Lube up the top bushing with super slick suspension type grease and soak the foam rings with plenty of oil. You can run oil in the lower legs on the air side with out issues, but not on the damper side cause the damper sucks it up and then you end up with less travel and harsh feeling fork. Stock oil in the damper is 5wt so putting 2.5 wt makes them feel much better, damping adjustments are pretty much set and forget type of deal, you can play around with the shims on the mid valve but no much else. Often servicing helps with the longevity and performance. It would be cool to see if a custom sealhead with better seals can be made to be able to run lower leg oil in the damper side as well.
Thanks for info, repair manual here ua-cam.com/video/lMwwoygFw1E/v-deo.html
I purchased a polygon t7e from bikes online with a Suntour Aion fork. The fork has an irritating knock when riding over roots and rocks. Wondering if removing tokens might help?
How 2 Setup a SR Suntour enduro Fork
ua-cam.com/video/hPVlGvMYczA/v-deo.html
Try this video
Really enjoying these Suntour videos! Not much good info out there on these and it's been hard to determine if the Durolux 36 and the RS19 TRIAir that come on the Bulls Copperhead EVO are any good or if Im going to end wanting to swap it out for a FOX 36 + Float X in 6 months 🤣
There was nothing on this fork that wasn’t sponsored on UA-cam
What is your background? You are amazingly knowledgeable about suspension and very comfortable taking them apart and re installing
I use to be car dealership mechanic, but bikes was a learning curve all the small parts and having to rebuild not just replace. To be honest I was over dealing bike shops slow expensive service so I got into it
MTBs are like BMWs; lots of shitty engineering and overpriced plastic parts but pretty simple to work on all things considered.
BMW specialists are usually more competent at their crafts than most bike shop mechanics tho 😂
Bike mechanics are a nightmare every shock needs $200 wrench shaft clamps. No harbor freight options most of the time
BMW mechanics just have more practice because their giant piles of dog shit once their 7 years old
The cup thing at the bottom is actually a large volume spacer. You clip the small ones up to 6 on the upper area and can add another 4 large ones to the bottom. If you red bull.
Thanks, no info on this I could find
I'm was about to purchase this fork on the online shop. Fortunately I watch this video before I purchased. You save my money bro
My fork was used as stated in the video. It’s unclear if it is better new since there is no un sponsored content on the web. If you finished the video it rode really good after servicing it.
I run a new non clapped out version of this fork. It's actually quite good.
You clearly didn't finished or watched the video! You just saw the thumbnail! 😅😂😂
I think something was really wrong with that fork on your first ride since the Durolux does not make those sounds brand new.
Also, there are 2 kinds of volume reducers in the durolux EQ forks: the clip-on type and the push-on type. The clip-on type is a relic of past Durolux designs. When they use an air positve and coil negative spring system.
The push-on type is a more recent invention, along with the EQ air spring (Solo air spring)...
Well it doesn’t age well then. It rode good after, damper oil change if you got to the end. Is the lower part of the top cap the piston O-ring assembly that’s a spacer?
is that creaking and popping sound also coming from the fork? just listening to it makes my skin crawl
Read the comments looks like most of the noise is normal and the other people had have same creeking
Deep Dive Reivew thanks like it
Thanks for watching!
Luxurious 👍
Nice brakes I got the mavens
My friend has the 36mm version, it doesnt make those weird noises... i think your fork might be broken?
Possible. Said it was a used fork 3 times. Waiting for a response video of another fork bounced on pavement
@@OtterMTBtech Well even though its a used for doesnt mean it has the right to break... i guess the fork isnt that strong anyway
Maybe if you had a new one to compare it with this might make sense.
My durolux doesn't sound like that. But, there is one big problem, the fork does not work in cool weather, even +5 degrees Celsius is cold for it, it is very sluggish, and as I understand it, this problem cannot be solved..
One more thing with compression: I found that high compression works the same as low compression on Fox? I compare it with my Fox 38 Factory, I don’t understand how to configure it.
Interesting about the weather. The stock damping fluid made this one ride good.
Anything before the damping oil change to 2.5 was useless. After that service 5 lsc 2 hsc
I had a rux 2018 and after the 1st maintenance it sounded the same, that sound could never be solved.
Nothing fixed it?
Nice to see the difference after you serviced the fork. One question, the service you made was disassemble, clean, reassemble with new fluids and without new seals?
I had a Durolux 36 (bought new) and it's hard to make it go all the way through the travel, lots of support. Differs a lot from the RS Lyrik with blows through the travel.
Yes, there is no parts to order, there is no service guide, there is no oil type to use and no support for home mechanic ing from Suntour at this time, they said it would change, but did not get me any instructions.
@@OtterMTBtech that's a shame to hear
How 2 Setup a SR Suntour enduro Fork
ua-cam.com/video/hPVlGvMYczA/v-deo.html
I made a video to fix it
If it pukes out the seals then it could be due to excessive pressure buildup because you're running too much oil in the lower legs...
There’s something wrong the damper and it sounds dry
That last clip at around 14:25 you nearly bottom the fork out just buy pushing into it. I'm fairly new to MTB, but I feel that being able to do that is not right(even on a heavy e-bike. Particularly with an air fork. Maybe someone could let mew know if this is normal though. I don't believe It's not like this with my fork(a fox 34 factory grip2).
Hard to follow video, Likly the damper has thick 10wt oil and running it without tokens was the best.
I swapped over damper oil. And then it was to plush to run it without tokens , the time stamp you added.
Last ride I added 2 tokens back in with the new damper oil and it just right.
Your Fox takes 5wt oil nothing else so it’s easy to dial in it.
I would do the same I do with all my fork lowers, a 15 min plunge in purple degreaser, cleanup and a nice powdercoat job.
None of them survive the 50 hrs service unscaped 😈
Nice clunking, sounds just like a Judy 😂
I have to run it again after the full service to see if the noise went away
The problem with SR Suntour & DVO products is that they are poorly built from new, Especially bushings are not sized etc.
DVO products Bought from DVO NZ feel absolutely amazing, They build every fork and shock they sell... Makes such a huge difference.
Hey just an advice, when converting from pounds and ounces to kilograms or grams you can just say one or the other as an example 5 pounds 13 ounces would be 2.636 kg or 2636 grams, I mean the way you wrote it works, but not as it supposed to, because it confuses people. It’s just a small mistake, keep it up, great videos.
Thanks for pointing this out. It’s hella annoying when guys weigh stuff in metric and I need to convert it over off screen.
Hose clip I just used a zip tie, those clips on any brand fork suck. I have the Durolux36 and have been riding it for about 8 months now I think and it has been performing great. Lots of support in corners and jumps, good adjustability and the price is right. Yeah its heavy, the only real notable downside I can come up with at this point but servicing it is pretty straightforward and easy IMO.
Lower service easy for sure. Glad it works. Whats your setup on fork?
@@OtterMTBtech Running them at 150mm, two tokens and otherwise stock inernals on my hardtail. Took a ride or two to really dial in compression settings but a couple bracket sessions and voila.
Jump on the fork and film it post it here, I’m curious if the noise is same.
@@OtterMTBtech My fork is silent. I have never heard it make any noise at all. Its my main bike so there are vids of it in operation on my channel.
I watch your videos you’re on smooth cross country trails in Yakima. You got a jump on the fork on the pavement with the microphone close to it.. was always curious what I would like to go biking in Yakima. I’m in Portland.
even with enticing prices for the dual crowns, suntour still has decades of dmg control before ill ever consider a set lol.
😆
Durolux owner here, mine doesnt give out a sound like that...
I could never get my high end suntour fork to feel ok. Rebound was never fast enough, air pressure was either too high with a wall of resistance or no mid stroke. Just get a rock shox dominion or zeb select at that price range.
Hey same experience hints this video, damper oil fixed it all
I saw your conclusion, I’d still rather buy a comparable priced shock from another brand.
How 2 Setup a SR Suntour enduro Fork
ua-cam.com/video/hPVlGvMYczA/v-deo.html I made you a video dog
@@OtterMTBtech I saw that 🙌
has any suntour fork ever not sucked?
🤣 hey thanks for the laugh. Suntour is a powerhouse of manufacturing if they made a $1200 fork it would probably be as good as a fox. Building is junk is always the most challenging.
I have a Raidon 34 it's performance is great, definitely as good as my 2023 Fox 34, but the seals aren't as durable and the bushings are quite thin. Still.. Great performance from a cheap fork
Durolux sounds like a vacuum brand, so the sucking is appropriate. 😂
😝
my 36 sound like that... after service the same ..
Did you ever fix it?
Tthe fork is now destroyed by the rovk shox oil. Kills the seals apparently.
This is myth. I spoke with DVO about Rockshox oil. They saw some seal swelling in few forks from RS oil. So the myth is born.
Why one would buy a “high end” suntour in the first place anyway?.. 🤷♂️
not fair to buy a used product and call it shitty, if you’re going to be reviewing it and posting it, at least get a brand new one that isn’t pre beaten up
😎
Thing is not everyone is in the financial position to spend thousands on mountain bike components
That’s why I made a repair video for the fork, and fixed it, if you were able to finish the video 😎
Why review a Sr Suntour, when you clearly favor other brand names?
I agree suntour is cheap as it gets .. but it’s used.
Did you watch the end of the video?
Just the name, Sun tour
SR Suntour* I misspelled it like three times in 4 videos
I had not so amazing experience with Durolux 36 and as far as I can see, 38 is not much more better.
Hey I fully decided was hard fork. If you can get to the end of the video I swapped damper oil and it rode really good with lighter oil.
Basically you're acting like a Brazilian mtbiker complaining about non named brands stuff.
It's the same bias: man buy used stuff, man don't service, man complain, man disappointed, man prefer named brand Fox stuff
Bro I built a repair manual and fixed the fork for other people struggling. Since Suntour wouldn’t give it to me. Thats Mercian 🇺🇸
How 2 FIX Suntour Durlux RC2 38| Full Service Guide
ua-cam.com/video/lMwwoygFw1E/v-deo.html
The sound it makes when jumping is just awful 🤣 Supermarket damper
Fork was decent after damper oil swap will have to consort noise after the full service
哈哈
swapped your fox for a USED durolux fork and giving it a shit review. you got scammed lol
😎
哈
😎
this is very hard to watch as a mechanic lol
Cool
I don’t care how it works, it’s ugly as hell.
Used and abused is what it is.
😎
If you bought used, service it, otherwise the review is COMPLETELY useless
If you finish the video, I get there 😎
Don't mean to hate but what's exactly the point of this video? You buy used fork, don't service it (!!!), it obviously rides shitty, you make a video of it and at the end you service and the fork is a lot better? It's kinda like buying a trashed, 300k miles Porsche and complaining it drives shitty. Well, duh.
Buy a Durlox 😎
No
Yes
@@OtterMTBtech no any experience with suntour has been a miserable disaster
Explain more don’t be so vague