Triple chainset series shimano xtr applications all mountain enduro trail chain wheel teeth 403022 crank lengths 165 170 175 180 mm bolt sizes 96 64 mm construction shimano hollowtech ii features shimano dyna sys housing widths 73 68 mm chain line 50 mm q factor 168 mm crank arm material aluminium carbon pedal thread 916 1428 x 127 mm colour black weight 656 g