Shimano Tiagra 4503 3x9sp Crankset
Hollowtech-II (HT2): integrated bottom bracket spindle with right crank for increased rigidity, while left arm mounts to splined spindle. 4503: triple 30/39/50t steel-inner, aluminum-middle/outer 9-speed SG-X chainrings: 865g with rings and BB @ 170mm. Ou
Item Specifications:
Crankset Arm Length:
175mm
Size:
30/39/50T