Shimano Deore 9sp Drivetrain Groupset Builder True Performance Rider tuned was the aim of the new DEORE developments. That has been achieved & the new DEORE is the group of choice for many different bikes & riding styles. From cross country to trail, from hardtail to full suspension, DEORE has something for every need. What's more, DEORE components are finest top quality & highly durable Don't settle for 'almost perfect'. Use our Groupset Builder to create your preferred mix of ratios & sizes. A 2 year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace & XTR products).