C type 5/8" ? If so I'll take one!
I have a 9 tooth, but that was my starting point based on the larger tyre .
Then I ordered a custom sprocket from Azusa.
The sprocket is listed here.
They apear to have a hobler and can make what ever you like.
http://www.azusaeng.com/Sprockets/AzSDno40.pdf
41 chain 58 tooth ( went with that because it fit in a cheaper to ship package.
I learned this the hard way....
The sprocket was not expensive nor was the shipping.
The " Dealer " padded up both after order it from Azusa and stuck me with the cost of just paying him a commission on the sale.
Drilling was easy because I again thought about this...
By using the 58 the teeth line up in such a way you can shoot a line down the center to find your drill pattern and line up your oem to mark the holes.
The center hole is larger enough to fit over the axle spacer if you are running a shim like I do for wider tyres.
If now you will need to bore that center as well.
Its really not that hard to do.
I could be wrong but ordering direct and living in the USA I bet you could get the hobbled blank for around 40 or 50 bucks shipped and I think that's pretty good
Not a great picture but here you can see my 58 tooth and the 9 B type I am running.
Over all I am very pleased.
This gives me nearly 7:1 at low speed and drops too????
I think its 3 or 4 : 1 when the clutch is fully transitioned.
Keep a log book like I do lol.
Then you can refer back too it for things like this.
If you can remember to keep the log near the PC lol.
I said I run a B type!!!!!!!
You need a C not a B!!!!!!
I have the B because of the jack shaft and I prefer it because not only in is held in place with e a nut but has two set screws for insurance.
But a B will not work for you.
I just keep typing and editing....
I have defanged this bike a lot this year.
Its turning into a decent rider now with some alterations.
The high sprocket ration greatly improves its low speed performance and has reduced the wear and tare on belts.
Its still has the potential to lift the front wheel even with you bearing down on the front provided you have the traction.
This can add some excitement on hills if you drive too aggressive, be warned.
