Shimano Alivio SL-M4010 Left Thumb Shifter

Description

The Shimano Alivio SL-M4010 shifter is designed for 2×9 mountain bike drivetrain applications. The shift lever features Shimano’s Rapidfire Plus technology and an optical gear display.

• The Shimano Alivio SL-M4010 shifter is designed for 2×9 mountain bike drivetrain applications. The shift lever features Shimano’s Rapidfire Plus technology and an optical gear display.
• Rapidfire Plus technology is designed for quick shifting, giving riders the ability to downshift three gears in one stroke
• The Optical Gear Display tells you which gear position is selected and also allows you to see how many gears you can select either on the low side or top side, which makes shifting control easier

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