Shimano ACERA M310 Speed ShifterShimano Altus SL M310 3 8 3X8 Speed Trigger Shifter Dual Lever Shifters Set US Model: SL M310 with original stainless steel variable speed inside Level: ALTUS Speed: 3 Speed or7 Speed or 8 Speed Caliber: 22. 2mm All dimensions are measured manually with deviation (ranged) at 1 3CM.

the Shimano SLX bottom bracket uses high quality sealed bearings and is offered in threaded and pressfit options

Compatibility:

Low sprocket Min

Recommended disc brake rotor      : SM-RT30* SM-RT54* SM-RT56*

Material：Aluminum Alloy

SHIMANO's HG400-9 delivers reliable 9-speed mountain bike shifting performance and a durable

Chain line (mm)              : 47

Right Lever: 8 Speed Right Trigger Shifter

Front Derailleur Cable Pull: Top

Shimano Hydraulic Mineral Oil One Color- 1000cc

Brake shoes Optional: R55C4 Carbon R55C4-A Carbon R55CT4

Model:  Deore m4100