Description
QR-21 Crank Bolt Assembly, BB30 / 386Evo / 392Evo Alloy Bolt Anodized Gray M30 cap M18 Bolt.
This assembly is suitable for all 30mm spindle cranks that utilize 30mm Extractor caps.
Suitable for:
- Road: Powerbox alloy, Powerbox Supercompact alloy, Energy, Gossamer cranksets
- Off-road: Powerbox alloy, KFX, Gradient crankets






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