Hi chaps
i'm looking for some guidance on suitable gearbox ratio for a new BGM box pipe on a TS1 230, i'm fitting one for a friend and though i'm pretty good with TS1 expansion pipes / gearbox combos i have to say i have no experience with the latest BGM pipe, was thinking maybe 4.9 final drive to start with on a Indian GP200 box 19 x 47? Am I off the mark with this? any help is greatly appreciated, thanks