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When you step up to the new close-ratio Shimano Dyna-Sys ten-speed drivetrain, let the reliable, wallet-friendly SLX SL-M660 Shift Levers control your gear selection. Fast, proven, and ergonomic Rapidfire Plus trigger design works with most brake levers for a clean cockpit. The two-way release lets you shift with the thumb or index finger, which allows multiple mounting options.

  • Features removable optical gear display with cover

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Here's what others have to say...

Is it 9 speed compatible ?

Is it 9 speed compatible ?