taco eater :
Ryan Nash from Columbia, MO United States
you are dumb if you have a kitted vespa and a euro clutch and do not have these springs.
black is 2k yellow is 4.5k white is 7k
I have white in mine because I was bored and now I can pull wheelies at any throttle position with my 47mm DEPS and calibrata pipe. Get a stiffer contra spring while you're at it and an aftermarket variator (polini + malossi belt mmmhmmm!!!)...