Box One M30-M BMX Race Cranks Crank Arm Length:155mm The Alienation OS20 BMX Rim-Black

The Alienation OS20 BMX Rim-Black rolls faster and smoother than a standard 20" rim

the Odyssey GTX-S Gyro has been a constantly improving cable detangler system since 1986

CHAIN FIT: 3/32" or 1/8"

heavy-duty tote-bag (included)

14mm chromoly center axle with 3/8” bolts

Box One M30-M BMX Race Cranks Crank Arm Length:155mm The Alienation OS20 BMX Rim-BlackThe Box One M30 M Cranks, as with most of Boxs higher end offerings, follows in the Oversized Technology design philosophy. In designing these products, Box moves material from less stressed areas to areas of higher stress, thereby achieving greater stiffness without adding any extra weight. The result of all this is that you will have a more instant response when pedaling. More efficient power delivery is the goal and Box has really achieved it with