My first intention was to build a 117, but the more questions I asked my builder about the bottom-end, the more concerned I became about realiability, and the longevity of the build. I was told a stock 110 bottom-end would eventually fail with 110+HP. This information was based on my builder's knowledge of my style of riding, and his experience. There are some people here that disagree with me, and that's ok. Not everybody rides like I do. But that said, I decided that if I was going to have to split the cases anyway, to get my 110 to stand more than 110+HP, I would build a 124 from the ground up. But that's just me. The craving for HP is an expensive addiction.......and it always gets worse.....never better. But Lord, the fun I've had!!! LMAO! There endeth the lesson. Later--HUBBARD