ELEVN offers a headset designed and developed for integrated 1-1/8" steerer headtube on 1-1/8" steerer forks. It has precision annular bearings as well as a sealed cover and a CNC machined aluminum compression star.
FEATURES :
• SHIS: IS42/28.6 | IS42/30
• Angular contact bearings 45° x 45°
• Sealed annular bearings
• CNC machined 6061 Aluminum cover and compression nut
• Weight: 72g
COMPATIBILITY:
• Fits 1-1/8" integrated head tube frames
• Fits 1-1/8" Steerer forks
| Headset Types | Integrated - IS | 
| Steer Tube Diameter | 1-1/8" | 
| Upper Outer Diameter | 42mm | 
| Lower Outer Diameter | 42mm | 
| Upper Inner Diameter | 1-1/8" (28,6 mm) | 
| Lower Inner Diameter | 1-1/8" (30,0 mm) |