Heavy Hitter 85 MX Fork Conversion Kit Shopify Collective DirtyBike's 219 RK primary chain

DirtyBike's 219 RK primary chain drive system minimizes drag and reduces chain noise

the complete linkage with bearings and sleeves weighs just 7 ounces

Long-lasting with proper cleaning

Don’t risk your stock belt failing in the middle of a ride — install a DirtyBike primary chain drive system

Heavy Hitter 85 MX Fork Conversion Kit Shopify Collective DirtyBike's 219 RK primary chainThe Heavy Hitter 85 MX Fork Conversion Kit is a CNC machined cup kit that enables a plug and play install of a KTM 85 complete front end on the Sur Ron LBX, Segway X160 X260, and Talaria Sting. It provides the correct triple clamp spacing and bearing fitment to replace the stock mountain bike derived front end with proven MX fork capability. Fitment: Sur Ron LBX LBS Segway X160 X260 Talaria Sting MX3 MX4 MX5 NOTE: A complete KTM 85 MX front end is