The Shimano Deore SL-M590 has 9-speed indexed shifting for crisp, precise gear changes and a responsive feel, a wide optical gear display for easier and more accurate shifting and an ergonomic thumb lever shape for comfortability.Features: 9-Speed indexed shifting for crisp, precise gear changes Wide optical gear display Ergonomic thumb lever Compatible with Shimano Deore rear derailleur
Improved lever shape
Longer main lever and ergonomic touch points
Improves rider feedback
Easy access main lever
Please note: We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. Certain content that appears on this site comes from AMAZON SERVICES LLC. This content is provided ‘AS IS’ and is subject to change or removal at any time.