The Shimano Altus SL-M315 Shifter offers light shifting operation, wide compatibility options, and is suitable for internal cable routing.

Features
Slim main lever body
Numbered gear display positioned below the handlebar, indicating gear position at a glance
Shimano's OPTISLICK cables feature a minimal, uniform electrically coated layer that improves cable routing efficiency and provides excellent corrosion resistance
RAPIDFIRE PLUS technology enables quick shifting, allowing riders to downshift three gears in one stroke
2WAY-RELEASE means shifts can be released by the pull of the index finger or push of the thumb

Mfr Claimed Weight
TBC