Still looking into this Crankset alternative. Have dropped the idea of the Shimano 105/Ultegra for now. I do have some SRAM/GXP stuff I could potentially play with though. I also decided to look at what the new Brompton (FSA?) Carbon crankset uses. It uses the FSA Megaevo BB, which I guess could mean that a) it has slim enough cups (which looks to be the case) and b) I could use an FSA crankset of which I've marked plenty as potential options.
Still looking into this Crankset alternative. Have dropped the idea of the Shimano 105/Ultegra for now. I do have some SRAM/GXP stuff I could potentially play with though. I also decided to look at what the new Brompton (FSA?) Carbon crankset uses. It uses the FSA Megaevo BB, which I guess could mean that a) it has slim enough cups (which looks to be the case) and b) I could use an FSA crankset of which I've marked plenty as potential options.