Features:
This bike headset base is made of qualified aluminum alloy, solid, firm and durable to use, ensures a long service life. Suitable for 4252 All Hide/Largediameter Outer Frame Headset/4455/56mm Headset. C base or D base for choosing to meet your different needs. C Base for 1.5inch Taper Fork. D Base for Straight/Taper Fork
Great accessory for mountain bike and road bike.

Specifications:
Condition: 100% Brand New and High Quality
Brand: RISK
Material: Aluminum Alloy
Color: Black
Outer Diameter: C/D: Approx. 51mm / 2inch
Inner Diameter: C: 39.7mm / 1.5inch D: 29.9mm / 1.1inch
Options: C Base, D Base (optional)
C Base for 1.5inch Taper Fork
D Base for Straight/Taper Fork
Bearing Angle: 45??
Type: Open
Applicable: for 4252 All Hide/Largediameter Outer Frame Headset/4455/56mm Headset
Weight: Approx. 713g

Packing List:
1 x Bike Headset Base