CRG 40mm #428 Quick Change Sprocket Hub - New

New Old Stock, genuine CRG 40mm quick change sprocket hub.  For use with CRG #428 quick change sprockets.  Sorry but we no longer have the sprockets available.

Dimensions:

Fits axle size:  40mm
Keyway:  8mm
Distance between sprocket mounting studs @ centers (top to bottom):  ~40.5mm
Distance between sprocket mounting studs @ centers (side to side):  ~49mm
Sprocket hub center locator diameter:  ~50mm
Sprocket hub center locator depth:  ~5mm
Overall width (less studs):  ~60mm