i wonder how long their knees can allow them to keep doing that.
and whats the point for a 650 front wheel? is it a hipster thing?
as you probably know, there's a good amount of toe overlap on track bikes. I would imagine this guy runs a 650c front simply for the toe clearance. It doesn't even look like he's running a matching 650c fork.
...don't know what to tell you about the knee thing. Mine are fine so far.