Add a little more metal to the rear tunnel of your snowmobile. The Ski Doo Gen 4/5 Blades are designed to be fastened to the inside rear tunnel of your 154" ,165" or 175" track length Ski Doo GEN 4/5 snowmobile. Our anatomically designed aluminum Blades add stiffness and strength to the factory tunnel of your sled.
The REV Gen 4/5 Blades are recommended if you travel on bumpy roads carrying extra weight on the rear tunnel of your snowmobile.
Verify length of tunnel before purchasing. Many modern Skidoo's come with a factory short tunnel. If this is the case for your sled, you will want to order one size down from your track length.
175 Track= 165 Tunnel
165 Track= 154 Tunnel

