Has anyone thought about a running half step and granny? Can you put a big chainring in the middle? We currently have, 32, 44, 55 and 11-32 on the back. The 12-14 and 14-16 gaps completely kill us, so we wondered about running 32, 50, 54 in the front and half step the gears. Providing you can put a big chainring in the middle, I think its the perfect solution to everyones problem
Current
Potential
Notice how there are small gaps from around 26km/h to 40km/h, which is exactly where you ride the most. I just realised thats with 51, and 55, rather than the less rare 50 54, but it would have the same effect