- Adapts American/Pro BMX frames with a non-Threaded 51.3mm (2.02") i.d. bottom bracket shell to accept English-threaded bottom bracket & crank applications- CNC-machined aluminum with three steel connecting bolts to prevent independent rotation
– Adapts American/Pro BMX frames with a non-Threaded 51.3mm (2.02″) i.d. bottom bracket shell to accept English-threaded bottom bracket & crank applications
– CNC-machined aluminum with three steel connecting bolts to prevent independent rotation
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