Shimano xt m785 10 speed double chainset silverthe shimano xt m785 10 speed double chainset in silver features 10 speed dyna sys chainrings and forged hollowtech ii aluminium cranks for an unrivalled strength to weight ratio features forged hollowtech ii aluminium cranks offer unrivalled strength to weight ratio lightweight construction with external super smooth bottom bracket bearings for efficient use aluminium double anodized outer chainring with plated inner ring for excellent rigidity and