All I ask is you watch the entire video before commenting

Durolux owner here. No mine does not sound like that. I’ve owned quite a few - never had one make that sound.

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

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.

Love this video. I have an Axon Werx bosst 34 with 100mm travel and something's wrong with it. Travel goes down to 80mm and damping is kind of a mess. What do you think causes this or what seems to be the issue? Is it the EQ air chamber or the PCS cartridge?

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.

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

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 🤣

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?

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.

With Fox 36 and 38 being superior to both of Suntour's offerings (Duro 36 and 38), which stanchion size gets you closer to the top tier competitor?

I hope you make a SR Suntour Auron 35 review. Pros and cons video. I have no complain about SR suntour forks honestly

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

Maybe if you had a new one to compare it with this might make sense.

What is your background? You are amazingly knowledgeable about suspension and very comfortable taking them apart and re installing

I'm durolux 36 29" owner, and that sounds is definitly from the damper (maybe rebound piston?). I recommend you to wait for the 2025 dampers to buy a new one, and you can update your fork, I have tested it and it's completely different, nice pedaling platform, super great response and sensitivity, and will make your fork more active. The 25' version need oil in lower legs for lubrication and not only grease as the previous versions. Hope that will help 😁

Deep Dive Reivew thanks like it

is that creaking and popping sound also coming from the fork? just listening to it makes my skin crawl

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.

Luxurious 👍

There’s something wrong the damper and it sounds dry

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.

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)...

My friend has the 36mm version, it doesnt make those weird noises... i think your fork might be broken?

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

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...

I had a rux 2018 and after the 1st maintenance it sounded the same, that sound could never be solved.

Quick non-pro tip ... you don't need anything fancy to inject shock fluid into the uppers. Place the bike on its side, support the front with a box so the two injection ports are facing up. Loosen each in turn and use a cheap 2oz plastic syringe to inject 2ml of shock fluid into the uppers. Just jam it into place and the plastic tip will deform enough to create the seal you need.

Durolux 38 owner here. Mine does not make any sounds. And works okay for its price. Would love to ride the intend suspension but this costs three times as much...

Nice brakes I got the mavens

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).

Durolux 38 owner here too. Is here anybody who knows hiw to travel the fork from 180 down to 160mm? Is it maybe the same thing with the spacer like the older forks or the 36(i also own)... The explosionpictures of the durolux are to find out, but i cant find the right spacer in the net. I ride SRS for the last 15years! Tipp: Always be sure, there iat enough grease and oil in it! They are sold all nearly dry.

Durolux owner here, mine doesnt give out a sound like that...

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.

I lived the same nightmare with my SUNTOUR RADION

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.

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.

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 😂

even with enticing prices for the dual crowns, suntour still has decades of dmg control before ill ever consider a set lol.

has any suntour fork ever not sucked?

Durolux sounds like a vacuum brand, so the sucking is appropriate. 😂

I'm shocked!

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.

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

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.

Tthe fork is now destroyed by the rovk shox oil. Kills the seals apparently.

my 36 sound like that... after service the same ..

Why one would buy a “high end” suntour in the first place anyway?.. 🤷‍♂️

Why review a Sr Suntour, when you clearly favor other brand names?

I use sram grease on it

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.

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

I agree suntour is cheap as it gets .. but it’s used.

Just the name, Sun tour

swapped your fox for a USED durolux fork and giving it a shit review. you got scammed lol

The sound it makes when jumping is just awful 🤣 Supermarket damper

I had not so amazing experience with Durolux 36 and as far as I can see, 38 is not much more better.

If you bought used, service it, otherwise the review is COMPLETELY useless

Thing is not everyone is in the financial position to spend thousands on mountain bike components

哈哈

哈

Used and abused is what it is.

this is very hard to watch as a mechanic lol

I don’t care how it works, it’s ugly as hell.

No