Bombshell Rocket SQ cranks are one of the lightest, if not lightest, on the market. 6061 T6 aluminum CNC machined in USA. 4 bolt spider 104 BCD compatible with Bombshell and all 104 BCD 4 bolt chain rings. Works with SQ bottom brackets.
weight: 135 mm 10.2 oz, 55lb rider weight limit.