Shimano BR-R451 Rear Mid-Reach Road Caliper Silver CheckoutTitle=WTB Proterra Tough i30 Rear Wheel - 27.5 4mm Freehub Body Shimano Micro

4mm Freehub Body Shimano Micro Spline Rim Internal Width 30mm Rim Material Aluminum Rim Model Enduro 300 Spoke Type I9 Aluminum Wheel Diameter/ISO 29 / 622 Rim inner width range 28-34

Features an easy to use quick-release mounting system and a shoulder strap for off the bike use

8mm sleeve nut wrench to tighten the compression sleeve nut on disc brake hoses

Simplified part choices quality materials and a broader compatibility for bottom brackets and chainrings brings power on every ride

Micro-adjustments to the front derailleur position (which can be activated by the levers) make it possible to avoid any chain contact even in cases of maximum crossing

Shimano BR-R451 Rear Mid-Reach Road Caliper Silver CheckoutTitle=WTB Proterra Tough i30 Rear Wheel - 27.5 4mm Freehub Body Shimano MicroShimano BR R451 Rear Mid Reach Road Caliper Silver. Shimano 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 TECH SPECS Brake Lever Actuation Short