will a jog 70cc bbk fit my
 

http://www.ebay.com/itm/YAMAHA-JOG-5...-/200938014933 will it fit my vento zip gt5?

yes, maybe the ad doesnt say if its a 10 or 12 if its a 12mm wrist pin it will but why by this super cheap kit and buy something with a little bit of quality here is a good kit a lot of people use that makes good power http://www.ebay.com/itm/Big-Bore-70c...item4d12e2f786
edit sorry i think the zip uses a 10mm and the trition gt5 uses the 12mm

I got this super cheap kit (10mm pin):

http://www.ebay.com/itm/321194845864...84.m1439.l2649

with a pipe
http://www.ebay.com/itm/321212507412...84.m1439.l2649

and its running 50mph+

did it come with 10mm wrist pin and circlips?

that's what the kit says it is

yes, and they send an even better kit than the one pictured... Thats a pic of a 50cc kit i think. Seller got 1 kit left !

Been lookin at this kit:

http://www.ebay.com/itm/290988045961...84.m1555.l2649

watercool !!! lol

Damn thats nice but you will need to add a pump and radiator