Paul Klamper Disc Caliper PM - Purple / Black
Post Mount Klamper
Three years of development and we think we nailed it. 100% designed, tested and manufactured in-house.
Two versions:
- Short Pull: This version is designed to work with road levers, including SRAM, Shimano and combined shifter/brake levers. It also works great with the Canti Lever, our short-pull flat bar brake lever.
- Long Pull: This version is designed to work with long-pull brake levers, such as the kind that work with V or linear-pull brakes. Our Love Levers work especially well with this model. It also works well with long-pull drop bar levers, such as the Cane Creek Drop V and Tektro RL520.
Specs:
- Material 6061 Aluminum, Heat Treated 12L14 Steel
- Weight: 211g
- Finish: Anodized Purple
- Brake Pads: Kool Stop Avid Elixer SRAM MTB XX Sintered Metal Compound #KS-D296S
- How to Adjust Video https://vimeo.com/250397883
Paul's Product Story
When we set out to build this brake, nearly three years ago, we started with a clean slate. Then we tried all manner of whacky ideas but eventually wound our way back to the tried and true ball bearing in a ramp system. From there we concentrated on the details. We made the balls bigger for smoothness and increased pad travel. We hardened the steel where the balls contact the ramps. We used three hardened steel pins to locate the pad actuator. Instead of a plastic thrust washer we used a flat needle roller thrust bearing.
Then we moved onto the caliper body. This took countless drawing revisions and probably 20 prototypes. We 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. We wanted easy adjustability but staying power. For that we designed detents into the circumference, located with spring ball plungers.
We 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.
We decided not to make rotors. That’s a manufacturing process we do not do, and they are readily available. The pads are Kool Stop sintered metallic.
As always, allow a couple short rides to bed in the pads.