ZRP Gen 4 Summit 1.25" Lift 0.5" offset SBB Spindle Set

We used the AXYS RMK as our benchmark to improve the snowmobility of the Ski Doo Gen 4. We matched the ground clearance and tunnel angles for improved deep snow performance.

This spindle raises the front of the snowmobile to get it further out of the snow to reduce drag, while also giving it a more nimble feeling. We also widened them 0.5 inches per side to make the snowmobile more predictable and stable while reducing the “paneling out” effect that causes these sleds to wash out in steep, technical terrain.

This taller spindle uses our Ski Bolt Back Geometry that improves handling by putting the ski bolt in line with the upper and lower a-arms. This reduces negative feedback to the handlebars when encountering bumps or old tracks while in a sidehill.

Please note that this spindle is designed to fit with all other stock components (shocks, suspension arms) but you will have to adjust/tune your suspension to your individual needs after adding these spindles. If you do not feel comfortable making these changes please work with a dealer that is knowledgeable in suspension customization.