Nice idea for a thread... Kudos!
This is a bit tenuous (as you can't see the bike) -
but this is me going down the hill from my house on the way to work last year with my Ixus clamped to the bars of my Twenty using my trusty Manfrotto clamp.
Getting about 32mph there - my best (pre-fixie) was 39 but that was plain scary!
I want to see a timelapse of a build from bits to completed bike
