Aerodynamics / Aerodynamic Cost / Aero parts

Possibly. No chunky bits though.

TT bikes are for ugly speed, road bikes are for looking nice on and drinking espresso next to in black and white. Obviously.

I'm not thin enough to read Rapha catalogs.

Shows just how well the Pinarello fork hugs the UKSI wheel.

The front disc looks to be an interesting shape, no?

Am I right in thinking that you want narrow forks when using a front disc but that you want a wide fork once you move to spoked wheels because the passage of the spokes causes interference with the front fork?

The extensions are interesting too.

After years denying that they'd made special wheels, it looks like UKSI actually have.

I'm not sure if there's a consensus on wide vs narrow fork for discs. Sounds like you either have to get the blades as close as possible to the wheel, or far away so each bit deals with its own airflow.

Extensions are to try and get a bit of extra reach out of the UCI regs.

Wow.

But, err..

1.3.004 Bicycles shall be of a type that is or could be sold for use by anyone practising cycling as a sport. The use of a bicycle designed especially for the attainment of a particular performance (record or other) shall be not authorised.

thus rendering all(?) of the recent 'unified hour' bikes illegal.

Yes.

Yes but we all know that's a nonsense rule.

Just like the wheel swap rule they were so strict about in the Giro yeah?

#fucktheuci

Hippy for UCI president. Free wheelsforaussies/buffet and no belgians allowed.

#casualracism

Just like Cav's bike today in Tour de Suisse

Just like Cav's bike today in Tour de Suisse

I think Specialized intend to put that on the market, there's a "clarification" to UCI regulations on availability to allow prototype/pre-production stuff to be raced as long as it comes to market within a specified time, 9 months IIRC. Of course, that should invalidate all results achieved on prototypes which didn't make it into production within the specified period, or at all, but that never seems to happen.

GB have been making/using their own wheels since London/ the 2013 world track champs.
Wheels are at the bottom of the list on their page so presume they still are the most recent in-house product (excluding developments to other kit since).

I'd vote for me.

https://www.youtube.com/watch?v=m9hQ3rizv8w

Great marketing by both Trek and Specialized on the 'mystery bikes'. I'd like to think Trek is winning at this game.

Aerodynamics mandems - any idea what the saving will be for me wearing a sperm hat for a flying 200m TT versus a normal helmet (kask vertigo)?

@xavierdisley published a graph showing something like 5s per kilo for the best (in his test) pointy hat vs. some random road helmet. If you can get that much benefit, you could be looking at a 1s improvement, assuming the same ~28mph speed. Obviously you'd hope to be going quite a bit quicker than that, so the time saving would be smaller, but it could still be several tenths.

You can probably wear a top hat with a chin strap instead and not notice any difference.

Worth it then given that several tenths could be the difference between qualifying for the match sprints or not.
Of course I could always go like crap, not qualify and look like a right bellend for wearing it.. But hey.

At least a tenth

@xavierdisley and anyone else who knows.. What is the most aerodynamic helmet you could wear for match sprinting and/or bunch races? Is it the Bambino?

Also - at the moment I use 172.5 cranks and 38cm bars - what savings am I likely to see in a 200m TT moving to 165 cranks and 34 or 36cm bars?

Changing crank length won't make you any more aero

Changing crank length won't make you any more aero

It might:

Best rider in that test reduced C_dA by about 0.001m² per mm reduction in crank length.