Chainwheel set 7/8 speed Shimano Tourney FC-A073 - 170/50-39-30T with square axle - black

The SHIMANO TOURNEY A070 crankset is compatible with 3x7 and 3x8 drivetrains and delivers a wide range of 50-39-34T gear ratios with a chain guard. It uses a rectangular taper bottom bracket interface.

Easy handling and smooth shifting

DUAL SIS

SG-X chainring

Interchangeable with SHIMANO race front cover for 8/7-speed system

Suitable for square bottom brackets

50-39-30T, chain guard

Product specifications:

Model: FC-A073

Series: SHIMANO Tourney A070

Color: Group color

Width BB unit with thread: 70 mm

Chain line (mm): 45

Chainring combination: 50-39-30T

Compatible BB Type: Square Bottom Bracket

Compatible chain: HG

Crank arm length (mm): 170

Arm chainring: 5

BCD (mm): Riveted blades

Rear gears: 7/8

Recommended BB Threaded (normal): BB-UN300 (113mm)

Width BB unit with thread: 68 mm

Q factor (mm): 171.5