Consists of 2 replacement headset bearings, spec as follows:
IS41 1 1/8” TOP HEADSET BEARING
ID - 30.1mm
OD - 41mm
H - 6.5mm
Angle - 36˚
IS52 1.5” BOTTOM HEADSET BEARING
ID - 40mm
OD - 52mm
H - 7mm
ANGLE - 45˚ Angle
Please ensure you measure you old bearings and compare to the dimensions above before ordering