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Happy Spring! *New* Spring hours: M-F 11-6, SAT 10-6. (Closed Sunday). Check out our 2022 stock of Breezer, Marin, Fuji and SE for commuters, gravel crunchers, BMX and recreational riders. Do we have the Marin DSX Flatbar Adventure bikes in stock? Yes! To schedule bike repair, click thru to our online appointment system below. As of April 1, we offer repair priority to folks who set up appointments. We ask that clients be masked and vaccinated when they enter our store. We commit to returning that favor. Questions? E-mail us at or text/call us at 510-328-1158.

Crank Brothers Front Endcaps Kit

Crank Brothers Front Endcaps Kit
  • Model | Size: Cobalt | 15mm
  • Model | Size: Iodine/Opium | 15mm
  • Model | Size: Iodine/Opium | 20mm
  • Model | Size: Cobalt | 9mm
  • Model | Size: Iodine/Opium | 9mm
Please select options


9/15/20mm conversion kit for current generation front hubs

- Cobalt endcaps – These kits convert current generation Cobalt front wheels to 9/15mm thru-axle.
- Iodine/Opium endcaps - These kits convert current generation Iodine and Opium front wheels to 9/15/20mm thru-axle.

- Conversion: 9/15/20mm
- Cobalt weight: 26g (9mm) / 16g (15mm)
- Iodine/Opium weight: 28g (9mm) / 18g (15mm) / 23g (20mm)

Part Numbers

Option UPC MPN
Iodine/Opium / 20mm 641300138866 13886