Quote Originally Posted by Popoki_Nui View Post
Triskeliongirl wondered about the cassette: it's a 14-28 6-speed Shimano 600 road cassette. I do have a few spare cassettes...I'll play around with them and see what happens.
Hmmm. If a 14 is your smallest cog, could that be what its slow on the flats? What is the smallest cog on your other bikes?