DESCRIPTION
Option:
1, Crankset only
2, Crankset + BB: come with BB-RS500 bottom bracket
——————————————————————————
Model: FC-R3000
Level: Sora
Color: Black grey as picture
Speed: 2×9 Speed
Chainring: 50-34T
Compatible chain: HG 9-speed
P.C.D.: 110mm
Arm length: 170mm
Bottom bracket type: Hollowtech II
Recommended bottom bracket: BB-RS500
High-end 4-arm design and compact 50-34T chainrings
——————————————————————————
Model: BB-RS500
Type: Hollowthch II
Material: Aluminum+ABS
Shell thread: BC1.37" x 24T
Shell width: 68mm
Weight: about 95g
Sealed cups keep out dirt and water
Maintenance free, easy installation
Durable anodised finish
