Box Five Square Taper BMX Crank Arms - 155mm - Black Reflective Stripe 6mm (1-1/8")

6mm (1-1/8")

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on the same machining tools and equipment for the past 40 years

Note: We ship tons of tires

Formerly known as the American Bottom Bracket Kit with Hop Up

Box Five Square Taper BMX Crank Arms - 155mm - Black Reflective Stripe 6mm (1-1/8")The Box Five Square Taper Cold Forged Crank Arms are constructed of 6061 T 6 aluminum. Featuring a JIS square taper standard, the oversized bottom bracket interface showcases a step down shape specific to the crank arm length meeting at the pedal boss. Unlike alternative options, no two lengths are the same. They are designed to be used with a square taper bottom bracket and 110mm 5 bolt chain rings (not included). With this purchase, you get one