Ill just get to it.

will be riding a singlespeed up front with about 42-44 teeth due to the 144BCD. I prefer 144BCD as I've heard that this offers the more stiff and ridged foundation for cranking. The rear cluster is a mystery to me and there are two or three things I'd love for this gear ratio to accomplish. Here it is.

I only have one bike and would like to double my one bike for training as well. I'll already be missing the top end speed of a 53 tooth chainring. Is there a small enough ring that you could install in the rear that will emulate the pull and thrust of a 53tooth chainring? If not can you get close?

Second I live an a extremely hilly area. So having several rings that are designated to climb with more ease is necessary. In fact the hills are the very reason that I wont just jump to single speed use.

Thirdly is brute force acceleration. Can you find a cluster that offers mid range acceleration to burst in and out of stop signs, intersections, sidewalks, blocks, straights.

Basically if it is possible. Hill Climbing gears down low, Burst of acceleration in the mid range, a small ring that can get darn close to the 53tooth full thrust on a traditional road bike.

Like I said, If possible I'd like this to be my training bike as well. Training alone is one thing, But to keep up in a pack, That top gear is necessary. I'd already be at a lose with the wonky gear ratio as it is. As everyone will be shifting back and forth with their road specific cluster, I'll already be at a disadvantage with a wonky cluster.

Thanks for all the help all
Crisp Bacon for all. If your vegan, then only the ripest banana-nanas