Product Photos: Ryan Palmer
This little piece is a heat shield, and it’s responsible for significantly lowering the running temperature of the Guide Ultimate. SRAM experimented with heat shields around the whole pad opening, but found that the most significant gains were made in just the one location.
To simplify the bleeding process, there’s a new bleed port interface, with a new tool. The tool snaps into place and is held securely with a snap ring and rubber seal. After the connection is made, turn the knob counterclockwise to open the system for bleeding. There’s also a redesigned fluid path that allows bubbles to move through the system without getting caught up–as long as you have the pistons pushed back in, that is. To help remind you to do this, SRAM put the bleed port on the inside of the caliper so that you have to remove the wheel in order to do a bleed. Not only will it remind you to reset your pistons prior to bleeding, it’ll keep brake fluid off your rotors.