Shimano BR-R451 Rear Mid-Reach Road Caliper Silver CheckoutSpec= Black/Gold Mounted in place of a

Mounted in place of a front derailleur the Chain Keeper works with single and 1x multi speed drivetrains using a narrow chain

Rider facing entry body panel is protected by 1/4″ closed cell foam designed to protect gear like a camera

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41 BB/Frame Interface BB107 BB Shell Width (mm) 107 Spindle Interface Type Shimano Hollowtech II Defined Color Black

Chromoly hardware Stem Angle (deg) -6 Length 100 Bar Clamp Diameter (mm) 31

Shimano BR-R451 Rear Mid-Reach Road Caliper Silver CheckoutSpec= Black/Gold Mounted in place of aShimano BR R451 Road Brake CalipersCompatible with STI and brake levers that are Super SLR enabled (e. g. Dura Ace Di2 7970 Dura Ace 7900 Ultegra Di2 6770 Ultegra 6700 105 5700 Tiagra 4600) Light action and accurate brake power Adjustable toe in brake shoes Use of these calipers with standard SLR enabled STI and brake levers results in a "mushy" brake response Brake Lever Actuation Short Pull Super SLR Pad Type Cartridge Brake Position Rear Brake