When Paul Components set out to build this brake, nearly three years ago, they started with a clean slate. Then they tried a number of wacky ideas but eventually wound their way back to the tried and true ball bearing in a ramp system. From there, Paul Components concentrated on the details. They made the balls bigger for smoothness and increased pad travel. They hardened the steel where the balls contact the ramps. They used three hardened steel pins to locate the pad actuator. Instead of a plastic thrust washer they used a flat needle roller thrust bearing.

Then Paul Components moved onto the caliper body. This took countless drawing revisions and probably 20 prototypes. They added “fangs” to the inner backing plate for stiffness, and beefed up the outer caliper body where needed. The pad adjusters went through a similar process. They wanted easy adjustability but staying power. For that, they designed detents into the circumference, located with spring ball plungers. Paul Components believe this is the best mechanical caliper ever made for a bicycle. It’s available in long pull and short pull, just change the actuating arm, both of which are available separately. 


Product Feature:

  • Material: 6061 Aluminum, Heat Treated Steel
  • Weight: 211g
  • Finish: Anodized
  • Anodized Color: Black or Silver
  • Cable Pull: Short Pull or Long Pull
  • Brake Pads: Kool Stop Disc Brake Pads

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About Paul Component Engineering

From their humble beginnings in Paul’s garage in 1989 to the renovated 1926 ex-Texaco petroleum distribution facility where they are now, PAUL has always kept this in mind: "make the nicest parts we can with simple innovations that truly bring a higher level of function and easy serviceability."

They often get comments on the PAUL look of the parts and our aesthetics, but more often than not the function is what drives the ultimate shape of the part. For over 25 years these ideals have worked for them, and ultimately the customer.


11204 Midway Chico, CA 95928