• Shimano Deore SL-M591 Shifters 590 upgrade10-speed
• Dyna-Sys 10-speed compatible - for use with precision 10-speedMTB 
• Pod design allows the use of these shifters with any brakelever
• Low-friction design means that shifters have a light andresponsive short-stroke action that reduces shifting effort
• Easy to read optical gear display
• Barrel adjuster for fine gear tuning
• Complete with inner cable
• Easy access clamp band adjustment for quick set up
• Package: left shifter (3-speed) and right shifter (10-speed)and wires