Neco H373 1-1/8" to 1.5" Tapered Fork Tube & 42-52.2mm Head Tube Bike Bearing Headset

Use for 1-1/8" to 1.5" Tapered Fork Tube 
Fits Headtube(ID.): 42mm-52.2mm 
Crown Race: 39.8mm 

For Integrated Head Tube use 
1.5" head tube reduced to 1-1/8"fork tube threadless headset 
Dimension:1-1/8" * 52 * 39.8 
Stack Height: 9.7±1mm 
ACB sealed bearing: NHB-6B (7H * OD41.8 * 45° * 45°) & NHB-15 (8H * OD52 * 45° * 45°) 

Material: 6061/T6 CNC Machined Top Cover
7075/T6 CNC Machined Crown Race 

SHIS NORM IS42/28.6 | IS52.2/39.8