Promax Impact BMX Stem - 53mm Top Load Red Dual Cable } ZIPP Ceramic Bearing Upgrade

} ZIPP Ceramic Bearing Upgrade Kit - 61903 - Compatible with ZR1/ZM2 hubs

Mode buttons allow the user to check battery charge make fine adjustments to the rear or front derailleur - even in the middle of a race and set the zero position of the rear and front derailleur

11 mm hardened steel round shackle

Brake Lever Actuation Hydraulic Brake Lever Use Left or Right Color Black Color Silver Defined Color List Black Defined Color List Silver keyword search DB-LVL-SLV2-C1 keyword search DB-LVL-SLV4-C1

The Box Disc Brake Adapter goes over your hub’s axle and mates with the frame’s dropout allowing mounting of a standard post mount disc brake caliper

Promax Impact BMX Stem - 53mm Top Load Red Dual Cable } ZIPP Ceramic Bearing UpgradeThe Impact is a top load BMX stem cold forged from the highest quality 6061 T6 aluminum then CNC machined to refine the shape and further reduce weight. CNC machined 6061 T6 aluminum Stem Type Top Load Stem Angle (deg) 0 Length 53 Rise 5 Reach 53 Bar Clamp Diameter (mm) 22. 2 Color Red Weight 278 Defined Color Red Steerer Clamp Diameter 1 1 8" Stack Height 30. 5 Size 53Mm