CDHPOWER 36T/40T/44T/52T Sprocket Fully CNC Made:
For spoke wheel only.
2pcs screw 12.9 Grade/W3/8-16X1"
3pcs screw 10.9Grade/W5/16-18X1"
Inner diameter size is around 31.5mm;
The Adapter fits 1.25 inch rear hub of SPOKE WHEEL BIKE with a diameter of 1.21"to 1.25" ;
Screw to screw center distance is about 78mm;
CNC Fully Made 1.25 inch hub adapter.
Works well with our multifunctional 3/6/9 holes sprocket.