RENTHAL Twinring™ Rear Sprocket - 49 Tooth - Blue 1500-520-49GPBU 3-in-1 Ratchet Stock color match

Stock color match

Lateral hook-and-loop strap closure

Thermoplastic Rubber (TPR) guards in key areas for impact resistance and flexibility

durable and flexible guards constructed from breathable stretch mesh for a comfortable

RENTHAL Twinring™ Rear Sprocket - 49 Tooth - Blue 1500-520-49GPBU 3-in-1 Ratchet Stock color matchInner ring is the same high strength Ultralight 7075 T 6 aluminum used for the standard Renthal sprocket Outer ring is electro less nickel coated steel for ultimate durability and is designed with the minimum amount of material to keep weight down The outer ring is expanded at 200C and then fitted over the inner; this interference fit combined with the wave pattern ensures a permanent bond for the life of the chainwheel The flat socket head screws add