Speed Limit Brake Technology
Less Weight, More Power. Bontrager's Speed Limit brakes use an innovative PowerAmp™ linkage design that provides the leverage ratio of a dual-pivot brake while using a single-pivot design that saves a significant amount of weight. To further improve performance, Bontrager has optimized all factors of Speed Limit brakes, including arm stiffness, pivot assemblies, spring stiffness, and pad compound, to make sure Speed Limit brakes deliver confident, responsive braking.
| Brakeset Model | Weight of Brakeset Pair |
|---|---|
| Zero G | 196g |
| Bontrager Speed Limit XXX | 220g |
| SRAM Red | 265g |
| Bontrager Speed Limit | 270g |
| Campagnolo Record Skeleton | 279g |
| SRAM Force | 279g |
| Shimano Dura Ace 7900 | 292g |
| SRAM Rival | 295g |
| Shimano Dura Ace 7800 | 314g |
| Shimano Ultegra SL | 320g |
Improved Braking Performance
The braking performance of a set of calipers can be affected by many things, including pad composition, wet or dry conditions, rim material, rider weight and hand strength. In addition to a great number of miles on the road in various conditions, we wanted to quantify the Bontrager Speed Limit performance in the lab. Using a bench test, we simulated a 200 lb combined rider and bike weight stopping from 15 mph. We used the same aluminum rim for all tests. A 6 lb force was applied and the stopping time was measured. This testing protocol allowed us to calculate a stopping distance comparison. The results show that the stopping distance and time of our single-pivot Speed Limit caliper was better than most dual-pivot designs.
Machine Test—Stop from 15 mph *as Tested by Bontrager Engineers
- 180 lb rider, 20 lb bike
- 6 lb force on one brake lever (moderate force)
| Seconds* | Distance | |
|---|---|---|
| Bontrager Speed Limit | 4.46 | 49.1 ft |
| Shimano Dura Ace | 4.29 | 47.2 ft |
| Shimano Ultegra | 4.88 | 53.7 ft |
Shorter is better.
Save weight, increase control and stop faster with a pair of Bontrager Speed Limit brake calipers:
