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How to do a Rockshox Lyrik lower leg service in 15 easy steps

In this article I’m going to give you a step-by-step process on how to properly perform a Rockshox Lyrik lower leg service.

Tools And Products You Need To Do The Rockshox Lyrik Lower Leg Service

There are quite a number of tools you’re going to need, some of which are very specific to this operation. In the table below you can find the steps involved, included the tools, products, and specifications necessary to perform them.

Step
Tool
Product
Specification
use bike cleaner
pressurized spray bottle
bike cleaner
rinse fork
mobile outdoor cleaner
dry fork
use bench mount work stand
bench mount work stand
remove rebound adjuster knob
2 mm hex tool
remove rebound adjuster foot bolt
5 mm hex tool
remove air spring foot bolt
5 mm hex tool
loosen lower legs with removal tool
lower leg removal tool / mallet
remove lower legs
oil drain pan
install thru-axle
thru axle
remove seals and foam rings
fork seal removal tool
clean lower legs
shop towel
remove air cap valve cover
remove valve
valve removal tool
remove top cap
24 mm top cap socket / 3/8″ drive ratchet
remove internal retaining ring
retaining ring pliers
remove air spring
remove loose tokens
reattach tokens
clean air spring
clean stanchions
pvc tube / shop towel
grease air shaft
suspension grease
reinstall air shaft
retaining ring pliers
install sag o-ring
sag o-ring (from service kit)
reinstall air cap
24 mm top cap socket / 3/8″ drive ratchet
reinstall valve
valve removal tool
pre-soak foam rings
lower leg oil / foam rings (from service kit)
install foam rings
install fork seals
35 mm seal driver tool / mallet
fork seals (from service kit)
grease seal channels
silicone grease
reinstall lower legs
rotate fork
move damper and air spring out
fill air spring side with lower leg oil
lower leg oil
10 ml
fill damper side with lower leg oil
lower leg oil
10 ml
install crush washers
crush washers (from service kit)
reinstall foot bolt
5 mm hex tool
reinstall rebound adjuster foot bolt
5 mm hex tool
tighten foot bolt and rebound adjuster
torque wrench
7.4 Nm
reinstall rebound adjuster knob
2 mm hex tool
reinflate air spring
suspension pump
100 Psi
reinstall air cap valve cover
clean fork
bike protect

Step 1. Clean The Fork

Use Bike Cleaner

Before we open up the fork it’s incredibly important to clean it. The dirt could easily get into the fork during the service. Especially the steerer tube can hold a lot of dirt and sand. Spray the fork copiously with bike cleaner. By using a pressurized spray bottle, it’s easy to get the stuff into every nook and cranny.

Rinse Fork

rinse RockShox Lyrik fork

After you’ve used the bike cleaner and let it sit for a minute or two, rinse it off. Any method will do but a mobile outdoor cleaner will proof to be particularly helpful and efficient.

Dry Fork

dry RockShox Lyrik fork

Make sure to dry the fork properly before moving onto the next step.

Step 2. Remove Rebound Adjuster And Foot Bolt

Use Bench Mount Work Stand

use bench mount work stand RockShox Lyrik fork

It’s recommended that for the next steps you use a bench mount work stand to be able to hold the fork while doing the Rockshox Lyrik lower leg service.

Remove Rebound Adjuster Knob

remove rebound adjuster knob RockShox Lyrik fork

Remove the rebound adjuster knob using a 2 mm hex key. It’s located at the bottom of the damper located in the right leg.

Remove Rebound Adjuster Foot Bolt

remove rebound adjuster foot bolt RockShox Lyrik fork

After you’ve removed this you can take out the rebound adjuster foot bolt with a 5 millimeter hex key.

Remove Air Spring Foot Bolt

remove air spring foot bolt RockShox Lyrik fork

The air spring, located at the bottom of the left leg, is tightened with a foot bolt. Using the 5 millimeter hex key, remove this bolt.

Step 3. Remove Damper And Air Spring

Loosen Lower Legs With Removal Tool

loosen lower legs with removal tool RockShox Lyrik fork

There can be quite some stiction between the bottom of the damper and air spring and the lower legs. So you’ll need to knock these out with a hammer.

We use specific damper side and spring side removal tools to prevent the threads from damaging. With the removal tool in place give it a solid tap with a mallet. This should be enough to break it loose.

Step 4. Remove The Lower Legs

Remove Lower Legs

remove lower legs RockShox Lyrik fork

With the lower legs loosened you can rotate the fork to a standing position and remove the damper and air spring. Be sure to have your oil drain pan ready, because oil will be coming out of the fork legs.

Install Thru-Axle

install thru axle RockShox Lyrik fork

Because only the fork brace keeps the loose lower leg in place, it’s a good practice to strengthen it using a thru axle.

Step 5. Remove Seals And Foam Rings

Remove Seals And Foam Rings

remove seals and foam rings RockShox Lyrik fork

We’re going to replace the foam rings, seals, and sag ring. To do so we need to remove the old ones first.

Using a fork seal removal tool, we can pop the seals and foam rings out.

Clean lower legs

clean lower legs RockShox Lyrik fork

Clean the parts where the seals and foam rings used to sit using a shop towel.

Step 6. Remove The Air Spring Shaft

Remove Air Cap Valve cover

remove air cap valve cover RockShox Lyrik fork

For now we’re going to leave the fork legs for a while and focus on the damper and air spring. Remove the air cap valve cover to get to the valve underneath.

Remove Valve

remove valve RockShox Lyrik fork

Use a valve remover tool to remove the valve.

Remove Top Cap

remove top cap RockShox Lyrik fork

Remove the top cap using a 24 mm top cap socket. Don’t use a standard socket. A standard socket doesn’t engage the top cap enough and may twist loose when pressure is applied, damaging it in the process.

Remove Internal Retaining Ring

remove internal retaining ring RockShox Lyrik fork

Rotate the fork so the stanchions point upwards. The air spring is kept into place with an internal retaining ring. Using retaining ring pliers you can remove this ring.

Remove Air Spring

remove air spring RockShox Lyrik fork

Using the lower leg removal tool for some extra leverage, we can now simply pull the air spring out.

Remove Loose Tokens

remove loose tokes RockShox Lyrik fork

Normally the air spring top cap is attached to one or more tokens. In this case the tokens had loosened and simply fell out the bottom of the stanchion.

Reattach Tokens

reattach tokens RockShox Lyrik fork

Since the tokens had gotten loose from the air spring top cap, we need to attach them again. Use the 24 mm top cap socket and an 8 mm hex tool to do so, and give it a gentle snug of about 2 Nm.

Step 7. Clean Parts

Clean Air Spring

clean air spring RockShox Lyrik fork

Wipe the old suspension oil from the air spring using a shop towel.

Clean Stanchions

clean stanchions RockShox Lyrik fork

Using a shop towel on a long plastic plastic tube, you can easily clean the stanchions without damaging them. The towel is fixed to the tube so you can move it back and forth without it becoming detached.

Step 8. Reassembling And Installing The Air Shaft

Grease Air Shaft

grease air shaft RockShox Lyrik fork

Use suspension grease on the air spring shaft seal head and part which connects to the inner wall of the stanchion.

Reinstall Air Shaft

reinstall air shaft RockShox Lyrik fork

Then insert the air spring shaft into the stanchion. The air spring shaft is also kept into place using an internal retaining ring.

Step 9. Reinstalling The Air Cap

Install Sag O-Ring

install sag o-ring RockShox Lyrik fork

Place the sag o-ring onto one of the stanchions and rotate the fork into an upright position.

Reinstall Air Cap

reinstall air cap RockShox Lyrik fork

Reinstall the air cap using the 24 mm top cap socket.

Reinstall Valve

reinstall valve RockShox Lyrik fork

Insert the valve again.

Step 10. Replacing Foam Rings And Seals

Pre-Soak Foam Rings

pre-soak foam rings RockShox Lyrik fork

Pre-soak the foam rings, which we’re going to install later. Use a plastic container with lower leg oil.

Install Foam Rings

install foam rings RockShox Lyrik fork

With the legs cleaned place the new foam rings into the lower legs using a pick to get them out of the plastic container.

Install Fork Seals

install fork seals RockShox Lyrik fork

Since the foam rings were lubricated when moved into place we don’t need any extra lubrication for the seals, since the foam rings have left enough on the insides of the lower leg. Using a seal driver tool we can then proceed to hammer the seals into place.

Step 11. Reinstalling Lower Legs

Grease seal channels

grease seal channels RockShox Lyrik fork

Before reinstalling the damper and air spring put some silicone grease on the seal channel to aid in this process. We use Renolit SL 410 M silicone grease for this purpose.

Reinstall Lower Legs

reinstall lower legs RockShox Lyrik fork

It’s now time to very carefully insert the damper and air spring into the lower legs. Be careful not to damage the smooth walls of the lower legs during this process. And also make sure that the damper and air spring go in correctly, with the air spring sitting on the left and the damper on the right. The damper is the side with the rebound adjuster. It might take some moving back and forth before the air spring and damper actually go into the lower legs.

Step 12. Inserting Oil Into Lower Legs

Rotate Fork

rotate fork RockShox Lyrik fork

Next up is the oil insertion into the lower legs. To be able to do this its best to rotate the fork so the legs are pointing upwards for gravity to do its job when you put in the oil.

Move Damper And Air Spring Out

move damper and air spring out RockShox Lyrik fork

Be sure to move both damper and air spring out a little again so they don’t stick out of the lower legs, and the oil actually has some room to go into.

Fill Air Spring Side With Lower Leg Oil

fill air spring side with lower leg oil RockShox Lyrik fork

Put 10 ml Öhlins Renep CGLP 68 lower leg oil into the lower leg housing the air spring using a syringe.

Fill Damper Side With Lower Leg Oil

fill damper side with lower leg oil RockShox Lyrik fork

Proceed to put 10 ml Öhlins Renep CGLP 68 lower leg oil into the lower leg housing the damper as well.

Step 13. Reinstalling Bottom Nut And Rebound Adjuster

Install Crush Washers

install crush washers RockShox Lyrik fork

If you haven’t already, remove the old crush washers and replace them with new ones. The last thing you want is for your fork to start leaking because you skipped this step.

Reinstall Air Spring Foot Bolt

reinstall foot bolt RockShox Lyrik fork

Reinstall the air spring foot bolt and use a torque wrench set at 7.4 Nm to tighten it.

Reinstall Rebound Adjuster Foot Bolt

reinstall rebound adjuster foot bolt RockShox Lyrik fork

Reinstall the rebound adjuster foot bolt. Use a torque wrench set at 7.4 Nm to tighten it as well.

Reinstall Rebound Adjuster Knob

reinstall rebound adjuster knob RockShox Lyrik fork

Reinstall the rebound adjuster knob using a 2 mm hex key.

Step 14. Inflate Air Spring

Reinflate Air Spring

reinflate air spring RockShox Lyrik fork

Inflate the air spring up to 100 Psi. This is the starting air pressure, which can be modified based on personal preferences and riding style.

Reinstall Air Cap Valve Cover

reinstall air cap valve cover RockShox Lyrik fork

Install the air cap valve cover afterwards.

Step 15. Clean Fork

clean fork RockShox Lyrik fork

A final cleanup with a bit of Bike Protect and your Rockshox Lyrik lower leg service is done.

bio vanseijen

Johan van Seijen

Founder Restoration.bike

Johan van Seijen is the founder of restoration.bike. His cycling career has seen him at the starting line of classics such as the Amstel Gold Race and Liege Bastogne Liege. Realizing his racing capacity would fall short of what was needed he obtained a MS from the University of Amsterdam in engineering. His love for cycling changed into riding in an amateur capacity with his local cycling club TFC Weesp as a roadie and supporting MTB Noordwest as a mountain biker. He repairs, restores, and builds bicycles and shares his knowledge on YouTube, Facebook and this website. 

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