Promax DSK-300 Post-Mount Mechanical Disc Brake Caliper euro-19mm-22mm Exclusive zipper lock system keeps

Exclusive zipper lock system keeps pants closed and secure

*Sized to fit rings with an outside diameter of 41-44mm

Exclusive zipper lock system  creates a fail-safe & keeps pants closed and secure

The Rennen Chainring-4-Bolt at J&R Bicycles is made from airplane-grade 7075-T6 aluminum alloy which is 83-percent stronger than the standard 6061-T6

Available in several sizes from 125mm to 165mm

Promax DSK-300 Post-Mount Mechanical Disc Brake Caliper euro-19mm-22mm Exclusive zipper lock system keepsThe Promax DSK 300 Post Mount Mechanical Disc Brake Caliper is an affordable yet high quality upgrade to keep your braking system at top performance. Made with a lightweight aluminum alloy caliper body and swingarm which allows for efficient stopping power without much added weight. Convenient pad adjustments are possible via an inboard dial or barrel adjuster. For easy maintenance, this caliper is compatible with Avid BB5 brake pads and also is