450cc Upgrade

The 450 upgrade is sold out and is replaced by the 477 upgrade.

Click here for the 477 FAQ

Link to the 477 project page

Are you interested in our engine upgrade? Live

  • Yes, very much so
    64% 111 / 171
  • Possibly, not sure
    10% 18 / 171
  • Maybe after my warranty is expired
    16% 28 / 171
  • Probably not
    1% 3 / 171
  • Absolutely not, happy with what I've got
    6% 11 / 171