The new Shimano Deore XT-M770 represent a further technological progress, as you can shift with them even under extreme supersoft loads. The pins, the climbing aids and these special tooth profiles make the gearshift only at the front as easy as you know it from behind. The 9-speed chainring ensures quieter, faster and smoother shifting. The chainring is fastened with four screws and ensures problem-free shifting, even in demanding terrain. The climbing aids and the guide teeth act perfectly with the HG chain links and the super stiff Wide Link derailleurs. In addition, the Shimano Deore XT-M770 chainring has incredibly high torsional strength. The profile of the teeth has been shaped so that the chain is picked up cleanly and can glide in both directions during shifting.