Shimano RD-M9100 XTR 11 Speed Jockey WheelsDeveloped for fast-paced MTB use, these jockey wheels offer consistently smooth performance on your mountain bike. Ready for action, these high-quality components are an ideal choice of upgrade for your Shimano XTR rear derailleur. Easy to install, these allow you to benefit from their light action on every ride.Features: Use: MTB Speed: 11 speed Compatibility: Shimano XTR rear derailleursA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.