Pair Shimano Tiagra ST- 4700 10 Speed STI Levers Road Bike Brake & Gear Shifters. Easy operation design lever – compact lever bracket hood is made from soft rubber and anatomically shaped to allow easy braking and shifting regardless of hand position. 10 speed Rear shifter. 2 speed Front shifter. Adjustable reach main lever via a shim system and light-action release lever assure easy gear shifting and braking. Precision shifting courtesy of Shimano indexing system. For use with double gear systems. Lever clamp 23.2 – 24.2.