![]() ![]() If you're going to be replacing your pads at the same time, twisting a flat head screwdriver between the old pads should push the pistons all the way back in, or if the pads are out a plastic tire lever can be used to make sure they pistons are fully retracted.Ĭompared to the HS2 rotors, the Shark Discs do have a slightly grabbier initial bite (no pun intended), which will be appreciated by riders looking for a little extra 'oomph' from their brakes. That'll likely be necessary if you're bumping up from a 1.8 mm rotor, but the process shouldn't take more than a few minutes. I'd already been running 2.0 mm thick HS2 rotors, so there was no need to re-set the caliper pistons to gain clearance for the Galfer rotors. I tested the Shark Disc rotors on several different bikes, all with SRAM's Code RSC brakes and metallic pads. ![]() The rotors are 2 mm thick, and are available in 180, 203, and 223 mm diameters. There's also a circular cutout near the 6 mounting holes that can be used to hold a speed sensor magnet for riders on e-bikes. The 203mm rotor weighs in at 180 grams, 20 grams lighter than a 200 mm SRAM HS2 rotor. ![]() All those holes also help shave weight, although rotors aren't that high on my list of places I'm worried about a few extra grams. ![]() They're also a little less likely to bend when you slip off a skinny or smack into a poorly placed rock.Īlong with the increased thickness and shark fins, Galfer went all-out with the laser cutter and zapped out 324 holes and 27 larger cutouts to help with air flow and clearing dust, mud, or water from the braking surface. The idea is that more material allows for better heat dissipation, and makes the rotors less likely to warp under high temperatures. TRP has rotors that are 2.3mm thick in their lineup, and Magura has had 2.0 mm rotors in their catalog for decades. For example, SRAM's HS2 rotors are 2 mm thick, up from the 1.85 mm thickness of their previous Centerline rotors. The rotors are 2 millimeters thick, keeping in line with the trend towards thicker rotors that has been gaining momentum recently. The 'Shark' moniker comes from the fins that extend underneath the braking surface, where they're intended to act as heat sinks to further aid in cooling. ![]()
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