• I don't like the idea of having something being towed behind me that isn't that visible, even with a flag etc.

    Anyway, umming and ahhing about going with a 7 speed SRAM X3 shifter, rear derailleur and S300 (I think) crankset and buying a new 12-32 cassette as I have all of this, or going with Shimano 9 speed and buying shifters and MTB crankset. The only thing is the SRAM stuff is black and I want silver. Silly, I know. The SRAM is 110bcd as well, so I can go a lot lower than the track cranks.