Rennen Threaded Decimal BMX Chainring-4-Bolt Gear Size:37.1T Laboratory tested and team-proven

Laboratory tested and team-proven

The Profile Z Coaster Rear BMX Hub is a proprietary freecoaster style hub engineered

3 wall thicknesses

Cleats: Premium Brass Cleats With Shims Included

MODEL NO: BL-MX70

Rennen Threaded Decimal BMX Chainring-4-Bolt Gear Size:37.1T Laboratory tested and team-provenContinuing 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