Description
Profile Racing Blackjack Sprocket Features
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
