Warranty on tight fork bushings?

Would you typically raise a warranty claim for tight bushings?

Rockshox lyriks bought new a month ago.

At my above average pressures, rebound just didn't seem to be fast enough even when fully opened up.

Stripped down today, had a play to feel how much stiction I could feel, csu wasn't sliding through under its own weight, to the scales out, can apply up to 2kg of force before movement, csu weighs 800g, so nearly 3kgf needed to get them moving.

Unsure if it's an odd one to warranty, I've taken them apart to diagnose an issue a lot of people wouldn't know about.

Stumpjumper evo 29

Turbo levo 2019

Comments

  • steve_sordy
    steve_sordy Posts: 2,460

    Those would have to be super tight to cause a 2.8kg friction force. Were the instructions followed when inflating the fork? You can look it up, but they go something like this.

    Deflate completely. The pump up in stages. If your target psi is 80psi, then inflate to 20psi and compress the fork through as much travel as you can, do the compression five times. Add another 20psi, repeat the compressions. And so forth up to your target pressure. This ensures that all chambers of the fork are at the correct pressure.

    Occasionally, grease can block some of the ports inside the fork that allows air to move around. If after inflating correctly you still have a problem, then do this.

    Deflate completely. Turn the bike upside down, stand the bars and controls on a thick towel to protect them. Remove the front wheel, replace the axle. Then with one foot on the bars, grasp the axle and jerk the fork lowers up as far and as fast as possible. If you heard nothing, repeat with more speed. If there is a blockage then you should hear a squelch and/or the extension will be a lot easier. Either way, you have done your bit. Inflate the fork as above. If the problem remains, then its definitely a warranty problem.