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Greetings! Proudly celebrating 9 years of cycling magic in the Laurel District. Enjoy new LOWER prices on Marin, SE, Fuji and Breezer in stock. Wait time for most repairs is 1-3 days. Flat fixes are same day if brought in by 12pm. Our December 2023 hours are: M-F 11-6, SAT 10-5. Closed 12/24-12/28. Questions? E-mail us at or text/call us at 510-328-1158.

Blackspire Crusher Beavertail Bash Guard (BB)

Blackspire Crusher Beavertail Bash Guard (BB)
Please select options


- Protect your expensive narrow wide chainring from impacts
- Lightweight thermoplastic bonded to a lightweight alloy backplate
- 32t model fits 26-32t round rings and 26-30t oval rings
- 38t model fits 34-38t round rings and 32-36t oval rings
- Compatible with 1X and 2X drivetrains
- CNC'd in Canada from 6061 aluminum with laser-etched graphics

Part Numbers

Option UPC MPN
Black / 32T 05055958002199 CBT03