Venom Products LW420776 Twin Trax Helix for TSS-04 Clutch - 64-40 x 64-38

1st Track - 64-40ER, Type - .36.
2nd Track - 64-38ER, Type - .36.

Developed to produce a quick upshift and improved backshift for excellent throttle response. Dual-angle-option helix offers fine-tunin for changing conditions. Available in a variety of multi-angles for almost any application. ER helixes are for Ski-Doo and Polaris machines with engine reverse. Helixes for TIED8 and TSS-04 clutches are NOT interchangeable. Type Example:Type F = full progressive; type .46 = .46 progressive. Sold each.