Shimano BR-R451 Rear Mid-Reach Road Caliper Silver CheckoutTitle=WTB Proterra Tough i30 Rear Wheel - 27.5 Simplified part choices quality materials

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

Square taper

Color Black Flat Protection Sidewall TPI 60 Weight 835 Defined Color Black ISO Width (mm) 58 ISO Diameter 584 / 650b / 27

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

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

Shimano BR-R451 Rear Mid-Reach Road Caliper Silver CheckoutTitle=WTB Proterra Tough i30 Rear Wheel - 27.5 Simplified part choices quality materialsShimano 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