Profile Racing Blackjack Sprocket - 28t, Black
Reintroducing the 2021 Profile Blackjack sprocket- celebrating 23 years since its inception! Profile Blackjack sprockets are CNC machined from 6061 Aluminum and made in the USA.
- The Blackjack is a "bolt on" only style sprocket and requires a sprocket bolt to be attached to crank arm.
- Fits 19mm, 22mm, & 24mm crank spindles: Bore size is 24mm and supplied with 19mm & 22mm adapters.
- For use with 1/8" chains only
Specs:
- Color: Anodized black with post production machining and laser graphics
- Chain Width: 1/8"
- Bore: 19mm , 22mm , 24mm
- Tooth Count: 28
- Material: Aluminum
- Adaptor: Includes adapters for 22mm and 19mm crank spindles
- Interface: Bolt Drive
- Defined Color: Black
