Next Spring I will ask again.

Finished my large tire install,got me an extra 3 mph from 55 to 58, its doesn't redline anymore. Not enough power?? I dunno but I'm happy with my ppirelli

One important Factor missed like usual
 

Everytime I see a conversation like this I hear no mention of rider wieght . How much a person wieghs has big influance on how a two wheeler performs. Especially rate of accelleration. And heavier people also have a good tendancy to be bigger hence catch more wind ! Wheather your fatter or taller (both weigh more than others) It will hinder your ability to keep up with your 100-150 lbs. buddies riding comparable scooters. We are talking about 5-10mph here. Rider Size/wieght has more to do with a difference like this than any baffle removal ever would from my 40 + yrs. of riding / tweaking shit to make it go better than it came from the factory. Just my two cents. Please state rider weight and size when talking about performance differences. It does matter much more with such small motored vehicles. Why do you think horse racing jockies are so small ??

Guilty!!!

Hadn't read the original article, but was wondering when someone would mention rider weight. On one of the big motorcycle forums, it was mentioned not long ago, that in order to get better mpgs and a faster bike just lose 15 to 20 lbs. That applies to 135hp motorcycles, and applies even more to under 20hp scoots.. Now, if only I could take that advice...

Sorry I should clarify:

no 50cc 4t engine is that fast, 50cc 2t, well that's a whole different game. My 2002 Kymco Yup 50 2t has been gpsed at 51mph.

Also; Spectre is balls-out modded :P