beno41

I have a 16 tooth engine sprocket and 15 tooth gearbox supplied by D & C Classics 48 teeth on cub rear. using 520 Standard chain. heavy chain catches on the gearbox casing. gear ratios STD.

Dave Gatenby Bridge Street Darlington.

I have a 3ta trials bike and fit a 16 tooth engine sprocket from D&C Classics 01535 630137 14tooth gearbox and 54 rear and use standard 520 size rear chain. TALON will supply a rear sprocket machined to your dimensions. I fit two rim locks. Hope this helps.