The primary sprocket nut is 1 - 1/8 inch.
One inch diameter.
It's a 140-90-16
128 teeth 1 1/8"
what is rim size for 1994 Harley Davidson Sportster XLH 1200
A twelve point 1/4 inch socket.
13t driver goes on a 33t sprocket
Sprocket size will b 16T & 39
Usually the sprocket is an inseparable part of the freewheel, and the size of the freewheel is determined by the hub.
The chain is size 530, and the stock gearing is 15/45, meaning that the front sprocket has 15 teeth and the rear sprocket has 45 teeth.
It uses a 47 tooth sprocket.
Any size will work. What'll work best depends on what you want it for. Higher top speed - go for a big sprocket. Quicker off the start - go for a smaller sprocket.
a 25 tooth sprocket will fit on a 9 tooth driver