The DUO Brand R2 120 rear hub delivers today’s tech for the demands of BMX racing. The lightweight CNC alloy body spins quick on precision sealed cartridge bearings (x4). The chromoly 120-point x 6-pawl cassette drives instant clicks for responsiveness out of the gate and around the entire track. The R2 120 is fit with a 15mm hollow thru-axle (included) and a 16-tooth cog with a Shimano-style lock ring (also included). Available in both six-bolt disc brake and non-disc configurations.