RIVERRUNNER
Active member
I have a question on how much rotating mass really affects speed. I just changed out my track from 192 studded, one inch, fully clipped, kimpex aggressor track to an 1.25 ripsaw that is clipped every 3rd window. I weighed the kimpex and it was 64 pounds. My ripsaw is weighed and 36 pounds on the camoplast website. If there is a change in speed, where am I going to notice it the most? I know last year my top speed on the speedo on a lake with little snow was 114. How much of a gain will I see by losing 28 pounds of rotating mass? Furthermore, is a pound of rotating mass noticeable? Like drilling out your brake rotor? Thanks guys this is the best snowmobiling site out there!!!!!!!!!!!!!!!!! 
