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Discussion Starter · #1 ·
I've been running a set of 2010 Rockshox Lyrik coil uturn forks on my Nomad for a few months now and have noticed that during the course of a ride the forks feel as if they are stiffening up. This feels at the time like a loss of 'plushness'.

The forks were serviced only about three weeks ago - new seals, oil and a mission control damper (under warranty). All geared up I'm about 205lbs and I'm running the stock spring. I'm sure the forks used to feel much better than they are at present. It possibly feels as if there's alot of stiction going on.

Any ideas anyone?
 

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If you ride often, replacing the 16ml/cc's of splash bath oil in each leg of the lowers should be done every 3 - 4 months, more often if ridden when wet and muddy. Sounds like it is time to service the lowers. You can use car engine oil. About 10-30 multi-grade and synthetic is better.

It's easy to do. The service manual can be downloaded and gives step by step instructions. Probably some u-tube videos around too if you search.
 

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Discussion Starter · #3 ·
I was going to do a lower leg oil change this weekend!

I've checked the oil in the damper this evening - poured it into a measuring tube and noted that there was only 90cc! This leads me to two conclusions - either there's been to little oil in there and that's been affecting travel or the oil has somehow migrated to the fork lowers, again affecting travel. If there's more oil in the lowers that the recommended 15cc then it's most likely the second option and i don't know how to deal with that!
 

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EDR
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BLUR'b said:
I was going to do a lower leg oil change this weekend!

I've checked the oil in the damper this evening - poured it into a measuring tube and noted that there was only 90cc! This leads me to two conclusions - either there's been to little oil in there and that's been affecting travel or the oil has somehow migrated to the fork lowers, again affecting travel. If there's more oil in the lowers that the recommended 15cc then it's most likely the second option and i don't know how to deal with that!
I just did a full comp/rebound damper rebuild on my Lyrik today. Easy peasy lemon sqeezy. 20 bucks for the kit.

When you take off the foot nut on the damper side be sure to push the rebound rod into the fork so the oil can come out. Then cycle the fork, this will force the oil out, if there is way too much you know the rebound oring is leaking.

On an aside, it's pretty common for some reason for techs to not put the proper amount of oil in.
And FWIW low damper fluid will not cause travel issues, just poor damping. Too much oil in the lowers can affect full travel. Remove the spring cap to free the spring up, then push the fork down and see if you get full travel. If not then it's definitely leaking to the lowers. Even if you do get full travel it's still could be leaking, just not enough yet to cause hydrolock.

You mentioned it's under warranty so if it's leaking into the lowers you could go that route.
 

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Discussion Starter · #5 ·
Thank EDR.

I've taken the forks to the LBS this morning where i had them recently serviced. They've just phoned me to say that they've checked them over and that they can't find anything wrong with them at all. They're suggesting that I return them to the UK importers so that they can have a look at them as even the importer has not heard of any other cases of the issues that i'm facing.

The problem is that when i took them into the shop this morning they seemed to be working fine. I've tried to explain that that is what happens, but after about 1/2 hrs use they seem to stiffen up. It can't be down to the damper as that's been replaced and the shop has confirmed that the bushings are fine. Not sure what else could be causing the problem / creating stiction. Help!!!
 

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BLUR'b said:
Thank EDR.

I've taken the forks to the LBS this morning where i had them recently serviced. They've just phoned me to say that they've checked them over and that they can't find anything wrong with them at all. They're suggesting that I return them to the UK importers so that they can have a look at them as even the importer has not heard of any other cases of the issues that i'm facing.

The problem is that when i took them into the shop this morning they seemed to be working fine. I've tried to explain that that is what happens, but after about 1/2 hrs use they seem to stiffen up. It can't be down to the damper as that's been replaced and the shop has confirmed that the bushings are fine. Not sure what else could be causing the problem / creating stiction. Help!!!
UK riding? Rainy and drizzly?

If it's wet and rainy I've noticed my Lyrik u-turn coil gets sticky while riding - almost loosing all travel except big hits. I think the oil just under the seals gets gummy when water wicks in and mixes with the oil near the seals.

If this is the case, it happens when rainy, and you are riding in the rain a lot, then look into getting some fork boots, like Lizard skins to keep water out. Remove the boots while not riding or when dry riding to be sure everything dries out.
 

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I had the same issue with my 2010. I decided to do a rebuild with all the factory oils and sram grease for the seals. When I removed the lowers I was expecting oil to drip out. They were dry as a bone. This should be filled with some oil to lube the seals. I forgot the exact number but its only a few cc's of oil. I also changed to the soft spring the yellow from the stock red medium spring. I reassembled the fork greasing the seals then inverting the fork and adding the oil to the lowers. The fork is much better now throughout its travel. Never as good as my Marzocchi 2004 coil freeride 130, but good enough. The lesson I learned was never trust the factory with levels of fluid. Every new fork or shock when I purchase for now on will be checked for oil level before installation. If its still not good you could always remove the floodgate in the damper. Pinkbike has a very easy to follow video on removing the floodgate. Some are putting the mission control dh damper and this would be the way to go. It cost about 115$ I would like to give this a try.
 

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UK riding? Rainy and drizzly?

If it's wet and rainy I've noticed my Lyrik u-turn coil gets sticky while riding - almost loosing all travel except big hits. I think the oil just under the seals gets gummy when water wicks in and mixes with the oil near the seals.

If this is the case, it happens when rainy, and you are riding in the rain a lot, then look into getting some fork boots, like Lizard skins to keep water out. Remove the boots while not riding or when dry riding to be sure everything dries out.
Would it help to get the Enduro seals? Are they better at keeping water out?
 

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Enduro seals better for mud than RS stock seals?

Would it help to get the Enduro seals? Are they better at keeping water out?
Maybe someone could answer who has experience with Enduro seals on a Lyrik.

I don't know. I have had excellent performance with the stock Lyrik seals. I just replaced my Lyrik seal recently after 2.5 years of all condition riding, about 5 or 6 thousand miles. The bushings are still tight but slide easily and I want to keep them that way. If the seals were any tighter there would be noticeable stiction. The replaced seals were tighter and a little more sticky at first.
 
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