Belt drive 2 speed gearbox

[Charles Laypool]

I was online browsing and came across a 2 speed goped

So i searched to see how much the gearbox is

http://www.bigtoysusa.com/evo2speedgearbox.aspx

89.99 anyt to bad

Im thinking of trying to mount that on a bicycle

Any thoughts or concerns
Im guessing the gearing might be tough

 

[skyash]

Looks ok just put a sprocket on that wheel and off you go

 

[Charles Laypool]

I think im gunna need a sprocket thats close to the size of the tire so i probly going to need a gear reduction i was thinking rear mounted with a belt drive to the rear wheel via golden eagles rim pulley