1984 KR250 A1 - Pistons

[azwood80]

Thanks for that info i have it running naw but it will need a rebuild in the near future will look into outher rods then. have you heard of BEET they made a 300 big bore kit for the kr years back cant find info on what pistons and rods they used.

[Grotty]

The Beet kit was 310cc and they used the standard KE175D pistons with standard, unmodified KR crank and rods. The standard KE175D pistons are 62.5mm diameter. See my earlier post.
-Grotty

[azwood80]

thats awsome from what i hear the kr bores have a lot of thickness in them for overboreing but i thort that the bigger pistons would be hevyer and throw out the balleneing on the stock internals corect me if i am wrong by all means.