piaggio zip top speed

i am after buying a piaggio zip or zip sp i have been told the sp engine is more tunable than the aircooled zip , what top speed can i realisticly achieve ie proper speed not whats showing on speedo when de restricted , i have only ever ridden geared scooters so dont really know what to except out of the 50cc engine are they really underpowered as standard and does fitting a 70cc kit make that much difference or would i be better buying a 125 2 stroke scooter if i want to travel any distances

 

Stock 50 does 40-50. Lc doesnt make that much difference as standard. Makes alot more sense to go 125 if your old enough ect.

 

i am old enough to ride a 125 but i dont want a 4 stroke scooter and i thought the zip was only available in 50cc as 2 stroke

 

top speed with standard gearing is about 58

 

i am buying a total standard mk1 piaggio zip sp how much difference to top speed will it make if i remove the washer behind the variator as i want to use it straight away , or am i better of waiting to i can derestrict the standard exhaust and upjet , anyone any ideas what size of main jet i will need for a derestricted mk 1 zip sp or how much bigger than standard do i need

 

You can use the standard jet

 

ramo are you saying its fine to use standard jet when i remove washer but do i not need to go up a few jet sizes when i de restrict exhaust

 

When removing the washer you dont need to change the jetting but wen derestricting the exhaust go up to 2-4 sizes

 

thanks

 

get a pipe and the washer doesent do its job

 

Bought a gear up for my zip 50 air cooled has 70cc polini sport, stage 6 belt, lighter rollers 5.8, 82 main jet leo vince zx + its still doing 58mph /: its doing the same speed with standard gears jus slower bottom end /: + the topend jus keeps powerband longer! Would any of you know if its meant 2 go quicker cause I know those mk1s do 65 with just a 70cc kit

 

Watercooled zips are better for top speed though + well I had a 72 in + it jus took a few seconds to kick in tried 76 still no change put an 82 in it its a lot better now lots of people have said about the jet but when they have had a go they've said it feels fine, + well how are they getting these zips doing 65 - 70?

 

I wanted to put a taller tyre on to up the gearing but they don't make the size I'm after... Can u get a front tyre on the rear? As there slightly taller but thinner?

 

No way that's small! + what you done to yours bro?

 

to get these speeds 50 plus mph out of a standard zip sp has everyone replaced the standard 12 carb with a 17.5 do mk2 zips come with a 17.5 carb as standard

 

MkII do have std 17mm carbs . I may even have a spare somewhere

 

mk1 seem to come fitted with 12mm carb