When Spaceballs isn't even ironic anymore.

[cantunamunch]

Jumbo Visma's new TT helmet. What are your thoughts

Thoughts? I would say not all marginal gains should be chased, always keep your dignity…

www.trainerroad.com

Just hope he shakes that neck gaiter out...

 

[scott43]

I mean.. it's a numbers game. Wait till the Freds start showing up with those at the cafe on your favourite route...

 

[cantunamunch]

I mean.. it's a numbers game.

Yes, I know. I also know that the helmet in the top pic probably gives a better field of view forward than previous ridonculous helmetage, the below specimen not least:

Wait till the Freds start showing up with those at the cafe on your favourite route...

But the design in the OP really points up DR's words to Tsunoda at the weekend.

 

[scott43]

Flip one of these upside down and use your bucket helmet?

 

[cantunamunch]

 

[cantunamunch]

Flip one of these upside down and use your bucket helmet?
View attachment 227966

Might have to check if Rudy Project have any patents on that

 

[BLiP]

Ugly, gigantic helmets are old news in speed skiing.

 

[cantunamunch]

Ugly, gigantic helmets are old news in speed skiing.

Yes. I think the UCI is double-freaking because Olympics this summer. And thus head socks are gone.

 

[cantunamunch]

 

[crgildart]

See you and raise....

 

[scott43]

So that's who bought my Specialized Aero helmet!!! Loser...

 

[cantunamunch]

The more I learn about aero, the less I actually know. At least Spesh have learned a thing or three

Except for "Never design to a preconceived shape" that is.

 

[scott43]

Well it's funny, we had a pretty good understanding of aerodynamics after the war but it took how many years for Dan Gurney to come up with the Gurney flap?? Not to mention the nearly deadly lift generated by the 917L. Amateurs having a go. Just hire the right person for a few days!

 

[cantunamunch]

Talking of amateurs having a go, how do you feel about the front wheel to downtube spacing?

Is it actually aero to minimise that gap?

 

[scott43]

Talking of amateurs having a go, how do you feel about the front wheel to downtube spacing?

Is it actually aero to minimise that gap?

No idea. I'm going to guess yes but... The wheel is already punching the hole but is there drag induced when the air flows break around the wheel and then is split again by the downtube? Is an airfoil downtube more useful? Never looked at the science have to confess.

 

[cantunamunch]

Never logged at the science have to confess.

Don't forget the Stokes condition - actual boundary layer is at the same velocity as the surface. So, in the frame's reference frame we have an airstream with both forwards and rotary momentum that encounters the downtube.

If the aero gain from that shadow is minimal, can we *please* get longer front center and hopefully avoid Chloe Dygert type tank slappers?

 

[scott43]

Not to mention toe overlap. I suppose the whole geometry thing is also there. However nothing saying you couldn't fair it in with non structural or even structural material.

 

[crgildart]

Might have to check if Rudy Project have any patents on that

View attachment 228193

hard boiled eggs and beans FTW..

 

[cantunamunch]

hard boiled eggs and beans FTW..

And side plaits. Those hussars knew what they were doing.

 

[Tom K.]

Don't forget the Stokes condition - actual boundary layer is at the same velocity as the surface. So, in the frame's reference frame we have an airstream with both forwards and rotary momentum that encounters the downtube.

It's more important to consider whether or not the Reynolds Number is above or below the laminar/turbulent transition zone of 2,100.

Kidding. Most of that stuff has (sadly) fallen out of my brain.