Sram bleeding edge procedure
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Thanks to revised bleed porting and fluid path, the new calipers should be easier than ever to chase out any bubbles. The last big change to the caliper comes in what SRAM is calling Bleeding Edge Technology. Additional heat regulation is provided through patent pending aluminum heat shields that sit between the pad and the caliper body which claim to reduce fluid temperature by almost 20Âșc. The new molded seal offers better cold weather performance and should be more consistent than previous seals. Phenolic piston insulators sit inside the forged 14 and 16mm aluminum pistons which reduce the heat transfer from the pad to the piston, but keep an aluminum surface at the piston seal for improved durability. Heat management has been improved as well with a new 2mm larger pad pocket for better airflow around the pads and the rotor. This should make for more pad clearance allowing easier set up and more consistent performance without slowly cinching down on the rotor and causing rubbing. Called the S4, the caliper body has revised gland geometry, seals, and a Molybdenum piston coating for better roll back (when you let go of the lever and the pads retract). While keeping the 4 piston portion of the design, the rest of the caliper gets an overhaul in almost every way.
#Sram bleeding edge procedure full
Part of the allure of the Guide has always been the power of a 4 piston brake caliper but the weight of a trail brake, making it the perfect brake for anything from aggressive trail to full on Enduro.