1 Dissimilar Forks K100 Sat May 12, 2018 11:08 am
Kafflut
Silver member
I'm reconstructing a crashed K100 RT (1986 I think) I have an extra set of forks. LH side & RH side forks appear to have dissimilar lengths
I should qualify "dissimilar length": One LH fork is disassembled - so I'm comparing the assembled LH one with the two assembled RH forks. With the forks removed from the bike, if I push the stanchions down until I can feel it pressing against the spring, let's call it take up the "free play", the LH one is shorter. If I pull the stanchions up as far as they can go the forks are the same length. The "free play" in the RH one is less than in the LH one.
I'm not yet able to establish how the disassembled LH one would compare lengthwise at this stage. However, if after assembly it turns out to be the same length as as the RH side forks I still have the dilemma of one "shorter" fork; which do I use in my build 1 long and 1 short or 2 long ones? What's going on; dissimilar forks seems strange?
I read in Haynes that there are differences between LH & RH forks on the K75S, but as far as I know my forks are all from K100.
I'm unable to identify if they are Fichtel & Sachs or Showa; I'm guessing F & S. The lower legs do not have lugs for a fork brace. There isn't an "s" stamped on any of them. I disassembled one RH fork and it has a single main spring and a single spacer.
I should qualify "dissimilar length": One LH fork is disassembled - so I'm comparing the assembled LH one with the two assembled RH forks. With the forks removed from the bike, if I push the stanchions down until I can feel it pressing against the spring, let's call it take up the "free play", the LH one is shorter. If I pull the stanchions up as far as they can go the forks are the same length. The "free play" in the RH one is less than in the LH one.
I'm not yet able to establish how the disassembled LH one would compare lengthwise at this stage. However, if after assembly it turns out to be the same length as as the RH side forks I still have the dilemma of one "shorter" fork; which do I use in my build 1 long and 1 short or 2 long ones? What's going on; dissimilar forks seems strange?
I read in Haynes that there are differences between LH & RH forks on the K75S, but as far as I know my forks are all from K100.
I'm unable to identify if they are Fichtel & Sachs or Showa; I'm guessing F & S. The lower legs do not have lugs for a fork brace. There isn't an "s" stamped on any of them. I disassembled one RH fork and it has a single main spring and a single spacer.
Last edited by Kafflut on Sat May 12, 2018 11:09 am; edited 1 time in total (Reason for editing : typo)