E RIDE PRO DirtyBike RK 420 Primary Belt to Chain Conversion Rundeer so you can pedal as

so you can pedal as much as you want

moisture wicking material feels tailored to your body and features all the technical components you need for longer rides

Whether you're navigating sand

All-Terrain Fat Tires: 20" x 4" Chaoyang fat tires provide the ultimate grip and stability

the Coswheel T20 delivers reliable performance and superior comfort

E RIDE PRO DirtyBike RK 420 Primary Belt to Chain Conversion Rundeer so you can pedal asDirtyBike Industries primary drive system now available with the best sealed 420 chain available. RK 420 GB MXU! If you ride in dusty, sandy or muddy conditions you may have primary belt slippage which will eventually fail the stock primary belt, possibly leaving you stranded in the middle of nowhere. Dont let this happen! Install a DirtyBike Industries primary chain drive system. With the world famous RK GB4MXU chain, this is a necessary upgrade for