LMH - yes i do have a significant length discrepancy, legacy of a motor bike accident back in 1968, leading to broken femur. Its about 10-12mm as measured about 10years ago when I first got orthotics which i still wear. My club mates are always pulling my leg (ouch - bad pun) about it.
I do have a much lighter road bike - a Specialised Allez, which is worth about 3mph for the same effort, but as I said my bike skills aren't to good and I've come off it a few times more than I should. When I get my confidence back I'll probably take it out then. In the meantime controlled effort is more important than speed.
Edited: 13/01/2013 at 19:16