Originally Posted by 2hundy
I bought a set of m chassis dampers 54000. The quality is very impressive.
I have a couple of questions:
How many 3mm o rings should I place on the damper shaft to achieve 56mm shock length?
The set comes with black and clear I rings. Are the clear ones for sealing the body and the black ones for length adjustment?
Right, the clear one is for the shock body and acts as the oil seal. Use one black o-ring on the shaft, which I believe is what the instructions call for. On the M05, not using any spacer under the piston on the shock shaft will work better. That will give you more droop which can help under certain track conditions. Suggest you try it both ways and see which you like better.
Three o-rings are used on the old TRF TC shocks that had the long shock shafts. There are many variations of the TRF shocks, with different shock body sizes and varying shock shaft lengths, so it can get confusing.
A 56 mm shock length was pretty much standard, but presently many racers are using longer shocks. A lot depends on what the grip level is at your track along with which spring and oil combination you are using. Generally speaking, the lower the grip level, the longer the shock.