'Upgrading' to skinny tyres pointless for London commuting

If there aren't any studies, what is it that makes it clear? Superstition, tradition and old wives' tales, presumably.

I dare say you have in your time found a group break off the front, often over a hard bit of road, or the steepest part of a climb and you've had to quickly respond? The acceleration is harder with heavier wheels and tyres. It is noticeably different. I was not told this by an old wife – it's clear through experience and would be difficult to study/test.

I can't quite believe I'm telling you this...

Still waiting for the pro peloton riders to realise the error of their ways, and start running 700x30 tyres…

:)

Some were using 30mm wide tubulars yesterday.

The dominance of aero at pro peloton speeds means we won't be seeing 30mm tyres outside the spring classics, but tyres have got wider in the past few years as the benefits have been analysed by the new-school directeurs sportifs, who are less bound by tradition than their predecessors.

I know Aero is your thing but you seem to ignore the fact most teams no.1 riders in stage races will be sheltered until mountain stages – when they'll want climbing wheels or the 36mm rims, and deeper rims less often.