RENTHAL Sprocket - Yamaha - 37 Tooth 437U-520-37GBSI Seat Foam Bump Reinforced seat area for additional

Reinforced seat area for additional strength in a key area

Abrasion and impact resistant

Full inner textile lining Closure system includes four polymer buckles with an innovative closure system that includes a ratchet with memory and a quick-release/locking system with self-aligning design for precise closure

Waterproof removable rain cover

RENTHAL Sprocket - Yamaha - 37 Tooth 437U-520-37GBSI Seat Foam Bump Reinforced seat area for additionalCNC machined from a specially enhanced 7075 T6 aluminum alloy Machined self cleaning mud grooves at each tooth to help increase wear resistance All rear sprockets are the ultralight design, making them 66 percent lighter than steel, yet incredibly durable