Shimano Shimano SLX M670 derailleur levers

Derailleur lever. 2-3x10 speeds. I-Spec A mount. The new, lightweigth Shimano Deore SLX Rapidfire Plus levers for the new Dyna-Sys 10-speed drivetrain technology with removeable optical gear display. I-spec mounting. 2-Way Release for different riding styles or shifting (indexfinger or thumb) from various riding positions. The upper lever still performs the same function, but now it swings both ways. Pull it with your finger or push it with your thumb - you choose. The 3x/2x manual mode converter allows you to manually change the left hand unit to be used with both double and triple cranks.