2017 Tour de France

[Gen]

Well while we wait. bike checks.. but looks how she shimmers

 

 

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[Velouria]

When other teams use similar tech in their suits - nothing. Not being biased in opinion but it really is getting a bit like sour grapes in terms of tech and the use thereof.

 

Sky puts 4 riders in the top 10 of the TT in the rain so it has to be their skinsuit. Nothing to do with bike handling or tyre choice (which in the wet could possibly have provided a greater advantage)

 

Everyone laughs at Sky's "marginal gains" claims but are quick to nit pick when they get piped at the line or stopwatch. So if it is illegal - ban it or shut it simple as that.

 

Can't really be called marginal gains if others are doing it. And to think others don't have bike skills or worry about tyre pressure is extremely naive.

 

This is more worrying though:

[Long Wheel Base]

Well while we wait. bike checks.. but looks how she shimmers

 

 

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Going with the tarmac today. Lately seems to be his weapon of choice. The vias is obviously just not too his liking.

[Gen]

Going with the tarmac today. Lately seems to be his weapon of choice. The vias is obviously just not too his liking.

Terrain probably not suited for the Venge ..a bit of climbing and probably some tricky descents?

 

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[Long Wheel Base]

He he he.. it's a trick that the hairdressers are using atm.. I know this because I have a lot of hair and when I went to have my long hair cut off last year (because i got gatvol of headaches etc ) I did something similar. .only my hair is not in a bob shape and much shorter..it really is wash and wear now.[emoji106]

 

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When I was still at school we used to have undercuts. My hair wasn't as long as Sagz(school rules) but the same concept was applied. Used to also be called a "step".

Looking back at pictures, I am glad I now have much shorter hair.

[dsw]

Seems the top pro's have not bought into the hype of the Spez Power saddles  

[Long Wheel Base]

Terrain probably not suited for the Venge ..a bit of climbing and probably some tricky descents?

 

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Yeah the venge is heavy. Well heavier compared to the tarmac. That new tarmac is more aero than the old one anyway. Either way, what ever choice Sagz makes is the best one.

[gummibear]

Terrain probably not suited for the Venge ..a bit of climbing and probably some tricky descents?

 

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Loads of hairpins and some are very wet and slippery after the rain.

 

Going to be tricky[emoji15][emoji15]

[Long Wheel Base]

So vortex generators have been used on aircraft for years. They are small little fins that are strategically placed on the upper surface of the wings and horizontal stabalisers, just in front of the control surface. Due to the fact that the wind speed is much greater on the upper surface of the wing and the air pressure less, the airflow gets very turbulent. By the time the turbulent air gets to your control surface it can be so disturbed that it would in fact be useless and then in theory you have no control surface and therefore not be able to steer the plane. What the vortex generator does is smooth out the airflow and keep the air closer to the surface of the wing and then allowing maximum efficiency once it gets to the aileron or elevator. 

The only reason I can think of for a skinsuit to have generators on is to reduce drag buy smoothing the flow. They mentioned wind tunnel testing and that is what they test for in the tunnel. The theory says it will work but I am not sure they go fast enough for long enough for this to work. Look how quick an aircraft has to be going forward before there is enough wind speed over the wings to provide lift.

But hey, anything to get your opposition all worked up. Maybe that's the reason?

[Fat Boab]

So vortex generators have been used on aircraft for years. They are small little fins that are strategically placed on the upper surface of the wings and horizontal stabalisers, just in front of the control surface. Due to the fact that the wind speed is much greater on the upper surface of the wing and the air pressure less, the airflow gets very turbulent. By the time the turbulent air gets to your control surface it can be so disturbed that it would in fact be useless and then in theory you have no control surface and therefore not be able to steer the plane. What the vortex generator does is smooth out the airflow and keep the air closer to the surface of the wing and then allowing maximum efficiency once it gets to the aileron or elevator. 

The only reason I can think of for a skinsuit to have generators on is to reduce drag buy smoothing the flow. They mentioned wind tunnel testing and that is what they test for in the tunnel. The theory says it will work but I am not sure they go fast enough for long enough for this to work. Look how quick an aircraft has to be going forward before there is enough wind speed over the wings to provide lift.

But hey, anything to get your opposition all worked up. Maybe that's the reason?

 

Separation point further round the arm/body to reduce the turbulent wake, I think. Same as the dimples on a golf ball.

 

[Thor Buttox]

Separation point further round the arm/body to reduce the turbulent wake, I think. Same as the dimples on a golf ball.

 

sphere-flow-comparison.jpg

Next year's TT winner based on pure physics. (And Gen can explain the hair twirls... )

[Pure Savage]

Can't really be called marginal gains if others are doing it. And to think others don't have bike skills or worry about tyre pressure is extremely naive.

 

This is more worrying though:

Very worrying, Astana was slacking, did not get the stage win. 

 

I think we should take into account that the majority of riders falling were from dryer regions, Spain, Australia etc, and the winner grew up in Wales, known for their long hot summers. 

 

Sometimes the conditions just are in your favour.

[Caerus]

Just arrived back this morning from Dusseldorf having watched the 1st stage. What a truly amazing day and sporting event to watch. What an incredible atmosphere along the route and within the city   Definitely one tick off the old bucket list

[Fat Boab]

Separation point further round the arm/body to reduce the turbulent wake, I think. Same as the dimples on a golf ball.

 

sphere-flow-comparison.jpg

 

From a dim and distant memory, the boundary layer Reynolds number, on a sphere of 100mm diameter (generous for the arm of a cyclist!), and an air velocity of 40 kph, will be +/-1000. Well below the expected laminar-turbulent transition of 100,000, so we would expect dimples, rough patches, hair on the correct part of your leg, to trip the boundary layer to turbulent thereby reducing form drag! Boom!! (I'll be here all week)

 

I need to lie down now........

[Caerus]

I walked the race/ track and it was extremely wet on the day. I'm surprised not more riders came off, some of those corners were fairly hectic.

Very worrying, Astana was slacking, did not get the stage win. 

 

I think we should take into account that the majority of riders falling were from dryer regions, Spain, Australia etc, and the winner grew up in Wales, known for their long hot summers. 

 

Sometimes the conditions just are in your favour.

[Pure Savage]

I just wish that the less prepared and lazy teams would stop trying to find excuses before we even hit the mountains.