Some people have had issues putting Gripper skis on their Matryx sled due to the lowered mounting bolt location in the Matryx spindle. Durapro rubbers do not fit properly, and the ones from the pro steer skis have to be cut narrower to fit the Gripper saddle. They do not however put enough pressure on the tail of the ski for best carbide to snow contact.
I installed Gripper skis on my 650 VR1 137, and used rubbers from Source Innovations here in Canada. They fit perfectly, and give the proper heel/tail pressure as well as holding the ski tip up. The thickness of the rubber from where the bottom of the spindle contacts to where the rubber contacts the saddle is the same thickness (actually slightly thicker), and they are wider for better ski saddle to spindle support. I did fit them with 1/4" shims from Bergstrom Skegs, but that reduced ski movement too much IMO. I removed the shims and will monitor if the tail pressure changes. It is easy to check by lifting the front of the sled off the ground and look at the natural position the ski wants to sit at, as well as how easily the ski pivots.
www.sourceinnovations.ca
I installed Gripper skis on my 650 VR1 137, and used rubbers from Source Innovations here in Canada. They fit perfectly, and give the proper heel/tail pressure as well as holding the ski tip up. The thickness of the rubber from where the bottom of the spindle contacts to where the rubber contacts the saddle is the same thickness (actually slightly thicker), and they are wider for better ski saddle to spindle support. I did fit them with 1/4" shims from Bergstrom Skegs, but that reduced ski movement too much IMO. I removed the shims and will monitor if the tail pressure changes. It is easy to check by lifting the front of the sled off the ground and look at the natural position the ski wants to sit at, as well as how easily the ski pivots.

Polaris Ultimate Ski Rubber Dampeners
An aftermarket solution to the soft skinny Polaris ski rubbers for the Gripper skis. Fits Pro-Ride or AXYS or Matryx mountain models. If you have an Assault with
