Convo Pros

[johnmic]

I,m thinking about putting a set of convo pros on my VT, I,m thinking 15x5 on the front and 15 x 8.5 on the back, what I,m having trouble working out is the offset.. can anyone shed any light what offset I would need.

Thanks

[soop]

I did a quick google search and anything around +35 should fit.
I suggest a bit more research to be sure though.