R1 shock, shaved and clearanced Versys 16kg/mm spring, needle bearing bushings
the popular Yamaha R1 shock is a common shock swap to the Versys, and this is my 4th R1 suspended Versys. still found relatively cheap, fully adjustable reservoir style with the correct mounting ends, very durable across all conditions, and longer in length and stroke. what's not to like? this bike gets the shock from a 2008 R1, showroom clean, it looks like it was swapped out for an aftermarket shock after almost no miles.
much has been written about the R1 shock on this forum and others... fitment, bushings, spring size, spring swaps, spring collars, on and on. c'mon, this is just a cheap ass shock swap that happens to work surprisingly well, let's not make it complicated.
yes, you need to make a nice clean radius cut on the right side tank trim to clear the reservoir, but let's talk bushings and springs, springs first. i used to get a custom spring made for the R1 to my specs, and while the introductory price was great and the service fast, the price soon went up 50% and the spring was no longer a bargain. the heck with it, i didn't recommend that source any longer.
i wanted to stay with the OEM Versys spring rate at 16kg/mm, and pulled the spring off an a Versys shock for comparison to the OEM R1 spring. hmmmm, this spring was very close to the R1 spring in length, but the R1 springs i had on hand were not all the same length with the variance about 7-8mm even though they were all from the same model year, strange. secondly, the R1 shock collar only fit one end of the Versys spring, you would think that the ends would have the same ID, but not so. i need to fix these issues if i want a free spring.
springs, for comparison, R1 left, ER6F/N center, Versys right...
Versys spring ground to match the average length of the R1 spring, then clearanced on one end to fit the R1 spring collar. the Versys spring length can be used as is, but i decided to make the change this time. the ID can opened with a Dremel quite easily, only the last 270 degrees of winding need to be addressed.
try fit the shock collar as you go...
until the collar fits and seats without effort...
PLEASE NOTE: a compressed 16kg/mm contains plenty of stored energy, use caution.