Check them out for deeper dives on some of these patents and more. SURESTOP is the closest thing to ABS (anti-lock-braking) for bicycles which can be achieved with minimal cost impact to the a bike. We’re guessing these could produce some of the lightest rotors around, but also probably some of the most expensive. Slots and grooves add more surface area, and should help keep the rotors clean and dry, too. SRAM’s patent application shows additional design features, like air scoops, to maximize airflow over the surface and shed heat even faster. The process is supposedly quite advanced (and expensive), but yields a very lightweight rotor. Their proposed solution in this patent is to spray molten stainless steel onto an aluminum carrier, creating a one-piece design with all the heat management benefits of a two-piece design. Those offer great braking and heat management, but they’re heavier than the simple, all-steel one-piece design. Alloy Linear Pull Brakes Equipped with Slide Pad Technology (One lever. To get both materials into a rotor, SRAM has thus far relied on a two-piece design that uses an alloy center section (carrier) with a steel rotor pinned or riveted to it. Brakes: Linear Pull Aluminum (V-brakes) with Sure Stop One lever Anti-lock. So, you know, we can still do some sick skids.Ĭurrently, SRAM’s brake rotors come in two varieties…full one-piece steel Paceline rotors, and their lighter two-piece Centerline XR rotors with an alloy carrier and steel brake track.īrake tracks are generally stainless steel because it has the best durability, but aluminum dissipates heat better. Presumably, pulling the rear brake (right hand) lever would only activate the rear brake like normal. And that the design allows for other iterations of biasing springs (like at 614) in lieu of a big ugly coil on top of the caliper. Buried somewhere in the patent is, I’m sure, an explanation for how the caliper resists that force but, honestly, it’s enough to know that it does. Well, the patent says the spring is there to “preferentially bias” the caliper towards the open position, but it’s not strong enough to actually pull it open. Which seems counter intuitive, in that we’d want it to be closed so that when there’s no forward rotation of the caliper during braking, it would remain closed, right? OK, so what about that spring? It appears to be pulling the caliper forward, into the “open” position such that fluid would flow to the front brake. So it’s not likely to see use on our road, gravel and mountain bikes.īut for commuters? City bikes and e-bikes? Definitely. And performance riders at even the most basic level are using front and rear braking as part of their bike handling. Let’s be real…it’s a bit of a cumbersome design for a performance bike. Uses for SRAM’s Anti-Pitch hydraulic brakes In reality, it would happen so quickly that you’d barely get the rear tire off the ground…certainly not enough to launch yourself over the handlebars. And as soon as the front wheel isn’t braking, the rear would immediately drop back to the ground.
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