Interesting. I get a solid few inches of heel clearance with my backrollers on the rack that came with the bike. I did take the bike to get worked over (wheels trued, etc) and they did work on the shifting for me so its wonderful now. They didnt like the Microshift and tried to push me to Dura Ace shifters due to "less plastic moving parts" but ill wait. Only issue I've had is slight toe overlap with the Planet Bike fenders I put on.