[KickinSomeA]

I just got home from a short deployment to a neglected bike. Custom wheels and the stock sprocket does not fit. The wheel has a 10.5cm bolt pattern. Part number on old sprocket ZSPR530-46T but that part no longer exists. Any assistance is greatly appreciated because I'm stuck.
Bike also lives on a gravel road so she's dirty.

 

[ZdaMan]

Try a sprocket meant for marchesini wheels.

 

[Kevap]

and get a steel rear sprocket... no need for aluminum if you're not tracking/racing.