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- Chainrings: No ChainringsCrank BB Model: PowerSplineCrank Color: BlackCrankarm Length: 175mmCrankarm Length: 175mmCrankset BCD: Not ApplicableCrnk Clr: BlackPart Description: BlazeSpin: Not ApplicableSpindle Interface Type: TruVativ Power Spline
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TruVativ Left Crank Arms. Features: Powerspline spindle interface is a proprietary Truvativ design.