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The new SRAM Guide RS is precision at your fingertips, with a proven 4-piston caliper and innovative SwingLinkâ„¢ lever technology that gives you more positive pad contact and increased braking authority. Updated for 2018, the new Guide RS B1 is light, crisp, clean and now compliments your SRAM drivetrain. Now featuring the World Championship-winning S4 caliper with Bleeding Edgeâ„¢ and Heat Shield technologies. Fast isnâ€™t about pure speed, itâ€™s about perfect speed. Itâ€™s about knowing the right line and having the confidence to ride it. Flawlessly.
- Lever material: aluminum, reach-adjustable (tool-free).
- Hydraulic S4 caliper with Bleeding Edgeâ„¢ and Heat Shield design.
- Caliper adjustability: Adjustable banjo.
- Mount type: Post mount.
- Fluid: DOT 5.1.
- Claimed weight: 385 grams.