If you have a Rockshox Coil U-Turn fork and you want to replace the spring to a softer or harder spring but didn't how, click on Read More to learn how to do it yourself with very simple tools you probably already have...

Step 1- Figure out the type of fork you have and purchase the appropriate Coil U-Turn spring assembly.  In this example, I have a 2010 Coil Lyrik U-Turn which came with the stock medium spring (red) and I wanted to switch to a softer spring (yellow).  Your local bike shop should be able to order the appropriate spring for you.  As a rule of thumb, if you are running your compression wide open to make your shock more supple over the stutter bumps, chances are you need to go to a lighter spring weight.  If you are bottoming out on minor landings and your compression is already all the way hard, chances are you need to a heavier spring weight.

Step 2- Although you can do the spring switch while the fork is still installed on the bike, I recommend that you remove the fork from the bike so you don't contaminate your brakes with any oil that may spill out of the fork.

Step 3- Remove the floodgate knob.  This is typically held on by a 2.5mm hex. There are 3 springs and 3 ball bearings inside the flood control knob that acts as adjustment detents.  Be careful to not lose these as they can be hard to find if they do fall out.  Set the parts in order on a clean towel away from the work area.

Step 4- Using a 5mm hex, loosen the footnut at the bottom of the left leg a few turns but not all the way off.

Step 6- Using a rubber mallet, firmly tap on the footnut to loosen the bolt.  This will release the spring from the lowers.  Remove the footnut and set aside.

Step 7- Using a 24mm socket, remove the top cap of the Coil U-Turn assembly.  When removing the spring assembly from the top of the fork, be careful to not damage the o-ring that is right beneath the top cap.

Step 8- Grease the coil of the replacement Coil U-Turn assembly.  I like to use silicone grease as this does not break down in fork oil as easily as regular grease.  You can get silicone grease at any hardware store as it's typically used for plumbing.

Step 9- Before installing the spring, put some shock oil (SRAM 5 wt) into the upper and lower to replace any that may have spilled out.

Step 10- Reinstall the new spring in reverse order.  Grease the threads on the top cap and footnut and make sure they are torqued to specifications.  Check the SRAM website for the appropriate torque values.

Reinstall fork on the bike and make sure that everything is tight (headset, brakes, wheels, etc...) and take it for a test ride.  I typically put a zip tie on mine to check the amount of travel I'm getting while I dial in the fork.

Happy Trails and have a great July 4th!