Listing for Circle AERO type ，range 44T-60T. Narro Wide Teeth

Can not use for Double Speed

Includes: 1pcs CIRDLE chainring with bolts
Shape: CIRCLE chainring, hollow model
Compatible with B.C.D 110mm
4 arms, Fit for 105 R7000 Ultegra R8000 Dura ace R9100 crank, single speed,can not use for double chainring.
Material: AL7075-T651 CNC made
Strength: HB150
Thickness: 4mm
Designed for SHIMANO dura ace R9100 , and Ultegra R8000
fit for MTB 9-12 speed, road 9 -11 speed
and shimano road 12 speed
Weight: 151g / 54T ; with alloy bolts 158g/54T