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A new XTR group also means a new chain. The M981 is a directional 10-speed design; it features hollow pins and debuts a special coating Shimano refer to as Sil-tec – in theory that should mean a part that runs smoother and lasts longer.
A 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.
If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or fitted.More information on returns