wheel size

[gas axe]

Hi all

i am trying to find out what wheel and tyre size im going to need for my trike and sometime ago know there was someone on theses here pages that given enough info would be able to work it out for me. Below i have tried to list as much info as possible.

Engine GSX1100G shaft drive
primary reduction ratio 1.681 (74/44)
secondary reduction 1.055 (19/18)
final reduction 2.666 (32/12)
1 st 2.714 (38/14)
2nd 1.809 (38/21)
3rd 1.409 (31/22)
4th 1.181 (26/22)
5th 0.962 (26/27)

measuring the tyre on the floor is 200cm for one complete turn.


diff is granada J reg 2.0 litre ghia
markings on tab is as follows

91GG GA 391
4A 1J02 1228

i would like to see 15 to 17 inch wheels if pos but i dont know whats best and with what size tyres?:confused:

[v8_trike]

Think your diff is a 3.92/1 ratio, you can check by removing the cover, it should be stamped somewhere on the crownwheel.