Promax BMX RMV Rim 451mm 20" x 1-1/8" 28h Color:Blue The Box Two Center Clamp

The Box Two Center Clamp Stem-1 1/8" is a brilliantly designed cold forged aluminum stem

On longer tracks with high starting hill where top speed is paramount and track conditions are top notch

R12 Sealed Bearings

This stem comes in a variety of sizes for use with a 1" and 1 1/8" steerer tubes and comes in lengths ranging from 35mm to 60mm

Promax BMX RMV Rim 451mm 20" x 1-1/8" 28h Color:Blue The Box Two Center ClampSimplistic design focused on reducing weight while building a rim for strength and speed. Rim has thicker inner wall to allow a tighter and stronger built wheel Made of 6061 T6 Aluminum RMV Rims use a sleeved joint SPECIFICATION Brake Track: Non Machined Color: Black Blue Hub Drilling: 28 Rim Width (Internal): 13 mm Rim Width (External): 18. 6 mm ISO Diameter: 451 20 x 1 1 8", 1 3 8" Rim Material: Alloy Manufacturer Spec ERD (mm): 439 mm QBP Measured