Drift trike gear ratio

[Jamesta]

Sooooo..i have a little project going on and off for the past couple of years which i hope to finish this year finally...and of course run into the big question... gearing... so need guru's help...
So far i have GX340 with inbuilt reduction gear box 2:1, witch i got for free, modified with 50lb springs, Mikuni 34mm carb/rejtted/ with air filter ,offset timing key,new style cdi, modified cooling fan,custom exhaust...port and polished head, pulls fuel pump, top plate... basically little over stage 1...next step will be bigger valves, torque cam, billet bits and governor remove...For now i have CVT Comet 30 series TAV2 1", which came standard with 10T 40/41 and 12T 35 Chain)...so the big question is what size sprockets and chain should i use to make this thing slide like ice and fly with a decent speed...My rear tires are 11x7.1x5 i do have second set of tires with PVC sleeves...
PS pictures are when i first started the project 2 years ago...

 

[landuse]

That wooden frame better just be a mock up and not what you are going to use. Not too many people here are going to want to help you out if you are going to go the wood route

 

[Jamesta]

ofcourse its going to be steel frame no doubt about that .. this is just the pre-make...layout... this is how its going to be and i have all other parts such as front wheel, handles, brakes... everything is sitting in my garage waiting to be put together...the only thing that i don't have is sprockets and chain...

 

[mckutzy]

Since you major limiting factor is the rear tire size.. get the biggest size you can for the tire size...
Im guessing 72t