Shimano BR-R9270 Dura-Ace DI2 Hydraulic Disc Brake Model:Rear Raceface and others made around

Raceface and others made around 2000-2014 Measure distance across opposite chainring tab-holes

WOMEN'S MOUNTAIN BIKE JERSEY BUILT FOR DURABILITY

At 262g per side in Medium they are a true fit-and-forget piece of kit

for example

but rolls as you'd want on a trail bike

Shimano BR-R9270 Dura-Ace DI2 Hydraulic Disc Brake Model:Rear Raceface and others made aroundThe DURA ACE ST R9270 2x12 speed Dual Control levers with Wireless Di2 connectivity deliver a clean aesthetic and simple setup while reimagined ergonomics bring a new level of comfort and control. 2x12 speed Dual Control lever with 4. 6mm longer reach for increased security and control Refined hood for improved ergonomics and aerodynamics with improved button access SERVO WAVE technology enhances brake performance thanks to a faster initial bite point