Hi, yesterday i bought a d-tracker 125. It's a awesome cycle for the city i think, but it's tooo slow... :/

So i want to get a bigbore kit for it and think that wwill be easy. But all the bigbore kit is for older models? My is from 2012 and can't find any big bore kit who fitting.

This kit is only for the 2010 model SP TAKEGAWA : S Stage Bore Up Kit 170cc [01-05-0045] and they say it not will fit later models?

So can anyone help me to where i can buy a big bore kit for klx/d-tracker 125 from 2012?