TSA-290 Thunder Shift Arms (TRA II Clutch)
TSA-395 Thunder Shift Arms (TRA III Clutch)
TSA-490 Thunder Shift Arms Light (TRA V Clutch)
TSA-495 Thunder Shift Arms (TRA V Clutch)
The all new Thunder Shift Arms (TSA) for the Ski-Doo clutch are machined from aircraft grade billet aluminum. The Thunder Shift Arms are five times stronger than stock arms – a must for big engines!
Thunder Shift Arms are available in the wide beam (3 grams lighter than stock arms) and a narrow beam arm which is 10 grams lighter and four times stronger than a stock arm. Thunder Shift Arms come with all the weights necessary for adjustment and are bushed and gram weight matched.
Designed to get the power to the track, the new Thunder Shift Arms make the TRA clutch more adjustable than ever. It’s like having hundreds of different ramp profiles available. Now you can make those fine adjustments to eliminate the peaks and valleys in your shift curve.
The best news of all is they are a bolt on component – no drilling, tapping or grinding and yes; you still have the full use of your clicker adjustments. Thunder Shift Arms are patented and race legal.