- Joined
- Apr 14, 2003
- Messages
- 6,539
- Location
- Hessel, Michigan
- Country
- USA
- Snowmobile
- Sidewinder, SR Viper XTX, SR Viper XTX, 2016 Apex XTX and Pro-Line Pro Stock 1000
Thunder Products is selling reverse angle 33/35 degree helix's that not only are clearanced out for the secondary coil bind, but will make the sled rev quicker, improves 60 foot times and would be a great helix for off-trail, mountain riding or very quick corner to corner trail riding.
Just completed testing on this helix with really good results!
Just completed testing on this helix with really good results!
iceback
Pro
Just got this helix , should spring be set at 3/1 as the service manual lists for US mtx or 3/3 ? Was surprised to see 3/1 in manuel .