The G27 is the ultimate gravel component, capable of transforming any drop bar bike into an off-road capable rig, made for multi-day bikepacking routes, singletrack adventures, and everything in between. Riders on rough and loose terrain, who primarily ride dirt, often find more confidence and control from a larger volume tire with 650b rim. Those who prioritize traction and stable control over flat out speed will appreciate the G27. - Full carbon rim features wide hookless beads that provide a 60% improvement in pinch flat resistance, while maintaining the ability to run lower tire pressures and improve traction and rolling resistance - Innerdrive mechanism features oversized 42mm steel ratchets positioned inboard and over the bearings, reducing stress on the axle and bearings while ensuring positive and reliable engagement - Interchangeable ratchets (sold separately) allow riders to easily tune their rides for their personal performance needs. Whether it be maximizing efficiency, response, or reliability - Premium Straight Pull hubs utilize equal spoke lengths with an anti-twist spoke design for improved wheel strength and performance, a lightweight alloy hubshell, stainless steel sealed bearings and easy to service axle system - Molded Spoke Hole Technology offers a variety of benefits that ultimately result in a more durable and reliable carbon fiber rim and wheel - 27mm internal rim width supports 42c -2.25" tires