105 bore on kx 85?

Question

call me thick but everyone is going on about 105 bore there 85s ,i just want to know what it is and how much it would cost to get it done and if i could do it my self

Answer 1

Basically you are talking about building a Supermini.There is a seperate class for them.Legally you can bore them to 112cc. Hope this info helps.

Answer 2

I don't know how much they cost, but do know if you intend to race the bike then it would be illegal (at least where I live).  So have a think about what you want to use the bike for before going ahead.

Answer 3

Auburn and mxdad are correct, this makes it illegal to run in the 85 stock class. You would have to race super mini which is what the KX100's and SX105's are made for. There are several companies that offer these but Max Power has a really nice kit for $1800.

http://www.maxpower-engines.com/big-bore...