Shimano xt m785 10 speed double chainset blacka high performance double chainset from the classic atb group using the most advanced 10 speed dyna sys chainringsfeatures forged hollowtech ii aluminium cranks offer unrivalled strength to weight ratio aluminium double anodized outer chainring with plated inner ring for excellent rigidity and durability optimised q factor for double chainset hg x chainring with patented spike pins give smooth and fast gear shifts under load stiffness and strength