Finally! SR Suntour XCR Air LOR Suspension Fork Service. FULL Overhaul. 

I had the same reaction from my bike shop - so will do myself. Did you put in the foam rings? Does anyone know what diameter they would be? Great video very helpful

@@gavinfreeman3234 didn’t put in the foam rings. By the sounds of it suntour forks run off grease alone and don’t have oil. I think the foam rings are mainly to act as a sponge for the oil to lube the stanchions as they move. After around 20 hours of riding i can start to notice them stiffening up again, i think its due to the dry dust getting into the forks. On sr suntours website they suggest the forks seals need regreasing from the inside after every 25 hours of riding so i will be doing this more often now as i found it a fairly simple job that only took 20 minutes or so. Have you done yours yet?

@@yaface120 Nope But that makes sense - on the video it looks like there is some oil in fork - but only about 5ml. Never done it before, what grease do you use? It is my sons bike and i can feel it starting to stiffen up a little. But he is such a light weight that i suspect he could go another 100 hours before it become a problem

@@gavinfreeman3234 on rockshox forks videos it seems like the oil gets put in the legs where the stanchions sit? On the suntours the oil goes in the top compartment im guessing to lube the spring. Im not an expert so could be wrong. I used fenwicks high speed grease as it was all i had around. I think its made mostly for bearings but its pretty thin so i thought it would be ok. Most videos I’ve watched recommend sram butter or slick honey if that helps

Go to the Suntour USA website. You”l find some spare parts, and there even oil.

What is the diameter of the thread on the upper part of the damper (oil cartridge) -right, for epicon x1 it is fun062-10 !?

What about the air piston oil? ¡We have same bike! I wanna do the service to my fork too but i am worry if i gonna need new oil.

How did you extend the travel

Can you clarify what type of foam? Was it directly inside the air chamber above the piston?

@@denismacfarlane255 It was a small piece of closed cell foam that i cut to size and with a hole in the center that I attached to the inside of the air top cap . I have had to cut it a bit to get it right but it enabled me to lower the air pressure so the fork works better on small bumps without bottoming out anymore. Suntour used to sell a piece off foam for this fork and that is where I got the idea from.

@@cortarelva What size form did you use?

since the negative spring is a coil you can just fill the air chamber with oil to reduce the volume. But dont dump it in, do it in for example 5ml steps (fox float fluid pillow packs are nice for this)

I installed foam rings on mine and it's sooo much smoother now: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-BxSWEHqFu2g.html

@@justahasbeen Thanks for that. Have ordered a new Rockshox Sektor now anyway and waiting for that to arrive. I'll see how they compare and if the Sektor is worth it. Not a high end fork by any means but I would hope its better. I wonder about the longevity of that compression/rebound assembly too and the fact that it's not rebuild-able could be a false economy.

Same here

Thought I should add to my comment that my Rockshox Sektors have been amazing. A whole other level and I would say worth the money for sure. Pay a couple of hundred more (AUD) and you get so much more tune-ability, quality and performance. You can see where the extra cost goes.

Another work around with good results, is to buy some closed cell foam, and cut to shape so it fixs in the air chamber- through the top. It works like air spacers making the fork more progressive through the stroke. So, once it's installed run a lower pressure in the fork to improve small bump performance and combined with adding oil into the lowers it should be a dream. This will be my next project on bike with Epixon forks :) I can't say how tall the foam should be as this is something I'll have to discover, using standard air spacers for reference :)

Qué medidas son las esponjas??

@@crazyfox7114 Las Esponjas son de 32 mm.

How much oil did you put in

3d print it. I have one, but I am afraid you wont want to go to czech republic😅

Oil can be used and is often as an upgrade, but no oil means quick and cleaner service with no spillage.

32mm diameter foam rings will fit. I used the ones that are for rockshox.

Yes, I installed 32mm foam rings on my XCR and it made a huge improvement: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-BxSWEHqFu2g.html

It's the same. Clean the outside of the fork with 91% isopropyl alcohol first to avoid washing more dirt into it. Unbolt and drop the lowers like in the video by carefully pulling with one hand on each side, don't grab the crown if it feels stuck insert the bolts 4 turns and try tapping again. Spray everything with 91% rubbing alcohol, not degreaser. Wipe everything clean. Use a dowel and clean shop towel to wipe inside the lowers. Regrease inside the wipers and on the spring shaft and rebound shaft. Carefully slide it back together and torque the bolts to 10nm. Go ride it! Airspring service is only needed if it's leaking and the cartridge can't be removed so there's no point to risk messing it up.

The xcr 34 is, but this is an xcr32. I don't think it's adjustable, if it is adjustable it's only 80-100 for 29ers and 80-120 for 27.5

it depends on the type of the fork, but a safety check service is always good

@@tmonteur5264 thanks buddy , did you have to disassembly the entire fork or can i just remove the red knob and adjust it , and what kinda tool did you use to do that ?

Had the same problem and never fixed it

Here's a possible solution for this problem, all you would need is a little gear oil (80w) and tools. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-f6W5Zwv4t-w.html

@@forestfriend9265 Thanks! I ordered some cheap parts from suntour, including new o-rings, took it completely apart (except for the damper) and rebuilt it. Very simple. The parts were probably unnecessary, but

Maybe this one is the right one: www.srsuntour.us/collections/xcr-service-parts/products/xcr-34-air-rebuild-kit-1

You shouldn't use a hex wrench or any other stick to take the air out, you could Mess the valve up. Use a fork air bomb instead!!!

seals are gone my dude. id take it to a shop to be sure

I wonder if it has anything to do with the lockout settings?

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-oUgBoSZm3LA.html

I'm not sure what else it could be apart from the spring/housing itself being out of place, broken/worn out.

Not neccesarily, be easier to get another fork 😊

@@mrjoeybackwheel1473. Thanks. Speaking of which, just ordered the manitou markhor last night

@@timothychua-reyes5631 great choice

Yeah, it should be the exact same setup.

I have Radion... watching you replies... but I think this is very similar.

I's the same. Clean the outside of the fork with isopropyl alcohol (only use this) first to avoid washing more dirt into it. Unbolt and drop the lowers like in the video by carefully pulling with one hand on each side, don't grab the crown if it feels stuck insert the bolts 4 turns and try tapping again. Spray everything and wipe everything clean. Use a dowel and clean shop towel to wipe inside the lowers. Regrease inside the wipers and on the spring shaft and rebound shaft. Carefully slide it back together and torque the bolts to 1Onm. Pump it up then go ride it! Airspring service is only needed if it's leaking and the cartridge can't be removed so there's no point to risk messing it up. Alternatively to grease you can add some oil (a low weight like 5w) in the lowers to boost performance but future services will be a bit longer/messier. Also add flesh foam rings and wipers if needs be. Adding oil is done the usual way- place lowers on stanchions, turn upside down and slide on until bolts almost come through the bottom, then add the oil using a syringe with a plastic tube end. Measurements only need to be a little (perhaps around 10ml) Lastly, another upgrade is to add closed cell foam into the top of the air chamber, which essentially works just like air spacers- makes the fork progressive thus you csn ride at a lower pressure for better small bump performance. I've heard you can use oil instead of foam (float fluid by Fox, or the cheapo route is 80w Gear oil) All the best x

si ma devi comprare la cartuccia idraulica predisposta per il bloccaggio remoto www.srsuntour.us/collections/xcr-service-parts/products/xcr32-rl-r-cartridge-1?variant=28106280003