Quote:
| Originally Posted by nelly Depends what your planning to use the bike for? Th bigger bore will breathe better but will knock out some midrange, usually about 5k ish.
The other thing you need to bear in mind is swingarm clearance. The 60mm will more than likely not fit with the stock arm. The 57mm will be tight! |
its not for racing just trackdays. i have a mag arm so clearnce is hopefully no longer be an issue.