- Shimano ST-M4050 Alivio 9-speed STI for hydraulic disc brake, 2 finger, right hand
. Great value Alivio 9-speed mountain bike hydraulic disc brake STI lever for crisp gear shifting. Mega9 compatible - for use with precision 9-speed drivetrain. 2-Way release allows the upper shift lever to activated by either your thumb or index finger to change gear. Low-friction design means that shifters have a light and responsive short-stroke action that reduces shifting effort. Alloy brake lever. Easy to read optical gear display. Shimano hydraulic disc brake compatible. Barrel adjusters for fine gear tuning. Anti rust stainless steel bolts. Easy access clamp band adjustment for quick set up.