Shimano Sora ST-R3500-L Double (2x) Left STI Lever - OUT OF BOX Bike Accessories Brand_Fix Manufacturing This patented technology

This patented technology

For use with 29mm crank spindles

S5 comes with 28mm tires but has clearance for up to a 34mm (measured) tire

Thanks to a combination of specifically selected materials

Shimano Sora ST-R3500-L Double (2x) Left STI Lever - OUT OF BOX Bike Accessories Brand_Fix Manufacturing This patented technologyEngineered for road bike adventures, this 2 speed dual control levers provide smooth and dependable shifting operation on every ride. Coming equipped with an adjustable lever reach, these can be fine tuned to perfectly match your hand size, riding style and the terrain conditions. Shimano has also ensured that both shifting and braking can be controlled from each lever, which frees up valuable handlebar space. Easy operation design lever lever bracket