Shimano Alivio SL-M3100-2L Shifter - Left 2-Speed RapidFire Plus MFPN=00.5215.009.000 42 BB/Frame Interface BB30 BB

42 BB/Frame Interface BB30 BB Shell Width (mm) 83 Spindle Interface Type SRAM DUB Defined Color Black

Internal taper increases strength and durability without adding weight

All the performance you need with a generous fit that lets you ski longer

and race-proven geometry

Shimano Alivio SL-M3100-2L Shifter - Left 2-Speed RapidFire Plus MFPN=00.5215.009.000 42 BB/Frame Interface BB30 BBThe Shimano Alivio SL M3100 Left Shifter provides responsive rear shifting for 9 speed mountain bike drivetrains. Double or Triple Double Drivetrain Speeds 9 Front Der Shifter Compatibility Shimano Mountain Shifter Style Trigger Speed 2 Speed