Shimano wrote the book on mountain bike shifting, and their Acera Rapidfire Shifter Set carries on that tradition. Light, smooth action is paired with decisive shifts for fast and easy on-trail gear changes.

Shimano Altus M310 shifters for 3x7 or 3x8 drivetrains. - Optical gear display - Stainless steel shift cables included

For reliable mountain bike shifting, Shimano's SL-M315 RAPIDFIRE shift lever is suited to quick shifting, giving riders the ability to downshift three gears in one stroke. - Slim main lever body - OPTISLICK for smooth shifting performance - Gear display positioned below the handlebar - Numbered gear display indicates gear position at a glance - Light shifting operation, wider compatibility, and suitable for internal cable routing - Streamlined cockpit experience

For those who ride road bikes and prefer the upright riding style and stability of flat bars, Shimano Tiagra flat bar shifters are an ideal choice. - Instant release, 2-way release - Rapidfire Plus technology - Optical gear display - Includes SP41 shift cable set - Compatible with standard road front derailleurs