I'm getting ready to build my first motorized bicycle. I have already bought the bike. I plan on using what seems to be classic at this time. The Kulana moon dog. Though I'm not to crazy with the paint job and those sparkles all over it, I've seen many good reviews.and I will use the king's 80cc motor. though I believe after reading many articles and threads on this forum that it is most probably around 60cc. But it will work for me.