DIYMINIBIKES

With a combination of this sprocket hub adapter plate and a racing wheel hub you have a sturdy, lightened, sprocket hub that can be easily converted.
Features:
Universal Aluminum Sprocket Hub Adaptor
Works with standard racing wheel hubs (ie 1″ Bore, 3/4″ Bore, Front, or 1-1/4″ Bore)
Compatible with 1-1/4″ Mini Lite Brake Rotor Hub (600314)
Will work with 5/16″ or 1/4″ wheel hub studs
Can be combined with a front hub to make a idler sprocket
Product Specs:
Outside Diameter: 6″
Center Bore: 1.75″
Dual Bolt Hole Patterns for Hub:
(3) 5/16″ Holes on a 2-1/2″ Bolt Circle
(3) 5/16″ Holes on a 2-3/8″ Bolt Circle
Sprocket Bolt Pattern: (6) 1/4″ Bolt Holes on a 5-1/4″ Bolt Hole Circle
Photos with sprockets and wheel hubs are just for reference, this listing is for the adapter plate only!