Promax BMX RMV Rim 451mm 20" x 1-1/8" 28h 26380828744in-stock but can also be used

but can also be used with a traditional Pivotal seat

clearance for ever-growing tire sizes

This folding tire grips the track and tight turns with small diamond pattern

Hub Drilling: 28

Promax BMX RMV Rim 451mm 20" x 1-1/8" 28h 26380828744in-stock but can also be usedSimplistic 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