| From memory its a 2.0 primary drive monster. Dont know which year but that should suffice for working out gear ratios.
I used mainly 15/42 or 15/43. The 38 tooth sprocket was used with a 14 tooth front sprocket for fast circuits (I think Castle Coombe and Snetterton.
I think the bike left me with a 15 tooth sprocket. If you dont have a 14 tooth let me know as I have two and can pass to whoevers collecting your wheel from Mallory.
Mark. | 
Hybrid Mode
