How to service (some) LC4 forks

Discussion in 'Thumpers' started by meat popsicle, May 7, 2008.

  1. mousitsas

    mousitsas Long timer

    Oct 10, 2008
    Athens, Greece
    You are right on both counts.
    In the case of the spacer I would need shorter springs, a cost I would like to avoid if possible. How bad an idea is to cut the existing ones? What puzzles me a bit in this case is that if I cut them shorter, I will not have the nice flat top of the oem. How important is that?
  2. Dolly Sod

    Dolly Sod I want to do right, but not right now

    Aug 18, 2003
    Richmond, Va

    I know many people cut down fork springs. I know the flat spot is important because as your springs compress they twist. If you have a rough end on the spring it is going to dig in to whatever it is pressing against.

    At a minimum you'd need to grind the end flat, and I suspect you'd be best off heating the end and bending it flat to mimc the original. I've never cut a fork spring before. So I'd get a second opinion on this.
    mousitsas likes this.
  3. meat popsicle

    meat popsicle Ignostic

    Feb 9, 2004
    Circumlocution Office of Little Dorrit
    hey mousitas,

    I can't say if swapping internals might work or is a good idea. I do recall there was some chatter about cutting for springs... I'll have to look if it was a good idea or bad one. I do recall shortening the travel of a rear shock with dog bones is a bad idea, probably because it would put lots of preload on the spring, but again this is from memory. OK, here's one:

    Gunnerbuck is a good inmate - I trust him. Says that shortening the spring will increase the spring rate - that may or may not bother you, but its good to know before you bother.

    If you want to talk to some pros here's the best in my area: They do answer email and their phone; probably give you some advice.

    Quick search for ya: