Rennen Threaded Decimal Chainring-4-Bolt Gear Size:47.1T Made with a rigid rubber

Made with a rigid rubber compound and curved design to match the contour of the rim for smooth braking performance

do note the 150 lb

Used for cassette removal

Stretch-rib panels strategically placed for flexibility where you want it most

Stretch-rib panels for flexibility and function

Rennen Threaded Decimal Chainring-4-Bolt Gear Size:47.1T Made with a rigid rubberContinuing with Rennen's tradition for engineering the best racing components, the Rennen Threaded Decimal Chainring 4 Bolt allows you to better dial in the gearing you need for the track you are facing that day. Like all of Rennen's components, the Rennen Threaded Decimal Chainring 4 Bolt is manufactured from 7075 T6 Aluminum for superior durability combined with unprecedented weight reduction. SPECIFICATION MATERIAL: U. S. A. Made 7000 Series