I am 99 percent sure my cycle uses 420 size rear chain and I see this sprocket from OldMiniBikes
https://www.OldMiniBikes.com/steel-sprocket-60-tooth-41-chain.html
and I wonder if it is the largest. The same company also sells a 72 tooth sprocket "blank" but I think blank means no holes. That wont work unless I can place my old sprocket over the new one and drill new holes.... I'd rather buy something ready to bolt on. Any suggestions for a larger sprocket source ?
https://www.OldMiniBikes.com/steel-sprocket-60-tooth-41-chain.html
and I wonder if it is the largest. The same company also sells a 72 tooth sprocket "blank" but I think blank means no holes. That wont work unless I can place my old sprocket over the new one and drill new holes.... I'd rather buy something ready to bolt on. Any suggestions for a larger sprocket source ?