Consists of 2 replacement headset bearings, spec as follows:
ZS49 TOP HEADSET BEARING
ID - 30.15mm
OD - 41mm
H - 6.5mm
Angle - 36˚
/ 45˚
EC49 BOTTOM HEADSET BEARING
ID - 40mm
OD - 52mm
H - 6.5mm
ANGLE - 36˚
/ 45˚
Please ensure you measure you old bearings and compare to the dimensions above before ordering