Profile Racing Blackjack Sprocket - 25t 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
- TECH SPECS
|Adaptor||Includes adapters for 22mm and 19mm crank spindles|
|Color||Anodized black with post production machining and laser graphics|
Item Specific Details
Manufacturer Part #: BLKJCKJ25
Model: Blackjack Sprocket