Microshift TS38 Thumb-Tap Shifter Description: With a variety of form factors to provide you with exactly the ergonomics you want, microSHIFT TS38 Thumb-Tap shifters combine light shifting effort with a wide range of derailleur compatibilities. Whether you're building a new bike or getting an old one back on the road, you can rely on these to do the job. Features: Easy to read gear indicator Light shifting action with positive index click Ergonomic thumb triggers Compatible with Shimano 7 speed drivetrains Specifications: Shifter Style: Trigger Speed: 3 x 7 Speed Derailleur Compatibility: Shimano Road & Mountain (6, 7, 8, 9 Speed) Shift Mechanism: Cable Actuated Color: Black Weight: -