Please check precise measurements against the below to determine the correct size.
SPECIFICATIONS
STEERER DIAMETER: 1-1/8"
OUTER DIAMETER: 41.8mm
INNER DIAMETER: 30.5mm
HEIGHT: 8mm
CHAMFER ANGLES: 45°/45°
TH-870S
Stainless balls and races
TH-870E
Chrome steel balls and races
TH-870R
Alloy outer race, chrome steel balls and inner race
Also known as part code MR-121. Black Bearing equivalent is bearing B7
