crts_lmbrt6
Active member
I have a 2012 800 155 with the RK tek pistons and heads as well as a HPS can and a c3 belt drive I am going to be installing the slp blue/pink and black/purple springs along with the thunder products washers with this set up should I also upgrade the helix as well or would this set up work just fine. I ride at elevations 5000 and above. Thanks for any input.