So having a 24" rear and 20" front means class 2. Having 24 on both ends means class 2. Even though both are actually muscle bikes. And technically, the AMF 26" I'm restoring is a muscle bike. It was like THE ONLY 26" muscle bike ever produced.... but... I'll just sit quietly about that one. Anyway, the way I'm reading this is: The MBBO didn't spark enough attention/participation. (I'm sorry I had to drop out last year due to life circumstances) So as a consequence, the MBBO is dead and it's now just a build off for small bikes. The SBBO if you will. It is what it is I guess. I'll mourn the loss, but I'll still enter a build.