Rennen Threaded Chainring-4-Bolt 104 BCD chainring-bolts The Promax Brake Kit 108mm

The Promax Brake Kit 108mm (pro) features the Promax Click V-Point brake lever (long) and the Promax P-1 V-Brake 108mm (pro)

- 3pc design with 19mm 8 spline or 48 splines heat-treated chromoly spindle

precision 45x45 bearings

MATERIAL: 4130 CrMo

Rennen Threaded Chainring-4-Bolt 104 BCD chainring-bolts The Promax Brake Kit 108mmRennen takes their commitment to advancing BMX racing technology seriously and with the Rennen Threaded Chainring 4 Bolt at J&R Bicycles this is obvious. They have machined internal threads into the gears of this sprocket which eliminates the need for a chainring nut wrench and allows for more accuracy. Made from super strong 3 16in thick 7075 T6 aluminum it can handle all kinds of conditions and weighing less than most other options on the market.