A BMX bottom bracket kit to fit all BMX frames with a Mid BB

providing strong threads and allen key slot

Jet BMX have specifically designed and tailored the Yoof 18" to suit the smaller rider (3ft 5" - 4ft 5")

Large enough to hold your essentials and small enough to stay out of your way while riding

The BB is sized for regular 68mm wide Euro BB’s which are found on most BMX race bikes with a choice of two Spindle lengths (108 or 113mm) to get that perfect crank/frame clearance

Box Two M30-P Race Crankset Size:175mm A BMX bottom bracket kitThe Box Two M30 P Cranks have been designed and built around their super stiff, cold forged Praxis M30 spindle. It fits frames with European bottom brackets. Paired with the same oversized, hollow forged arms and 104 BCD spider as the Box One M35 Cranks. After an independent lab test the Box One M35 and Box Two M30 came out on top in terms of stiffness compared to anything else on the market. The Box Crankset includes a Praxis M30 BSA threaded bottom