Jungels' position looks pretty dang aero.

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You know, it is a common misconception that the non-UCI compliant bikes are faster... I want to say it was one of the podcasts I heard with Josh Poertner from Silca (formerly of Zipp) and he said that in some cases, they are, but in some cases they are not. Yes, they're shapes appear to be more aero and they don't obey the 3:1 rule, but that doesn't necessarily mean they're faster. On some of the Non-UCI bikes it is very difficult to get a low TT position. They are designed for Triathlon riding to be efficient and preserve muscles and energy for the run, but not necessarily the fastest TT. They're also desined around the fact that they have to be fast while carrying the supplies and hydration for a 100+ mile ride.
looks like majka needs moar time in the tunnel.
CrankAddictsRich wrote: ↑Tue May 21, 2019 8:28 pmYou know, it is a common misconception that the non-UCI compliant bikes are faster... I want to say it was one of the podcasts I heard with Josh Poertner from Silca (formerly of Zipp) and he said that in some cases, they are, but in some cases they are not. Yes, they're shapes appear to be more aero and they don't obey the 3:1 rule, but that doesn't necessarily mean they're faster. On some of the Non-UCI bikes it is very difficult to get a low TT position. They are designed for Triathlon riding to be efficient and preserve muscles and energy for the run, but not necessarily the fastest TT. They're also desined around the fact that they have to be fast while carrying the supplies and hydration for a 100+ mile ride.
Yes... actually... that just furthers my point.. On many Triathlon, NON-UCI bikes It can be difficult to get the front as low as you want to ruly be as fast as possible in a TT. The headtubes are taller to get riders to sit up a bit more to be compfortable for 100+ miles. For sure though, there are fit rules that need to be followed for UCI compliance that can take away some aero.LouisN wrote: ↑Tue May 21, 2019 9:00 pmA "fast" bike needs a rider on it.
IMO it's the UCI bike measurment rules that "limit" performance, based on some random numbers.
If some riders are faster than others, you have to take into account their body measurments fit better inside UCI's limits than others.
Ask a bike fitter to fit a rider based on ideal aero and performance measurments on a TT/Tri bike. Then tell him the bike fit needs to be UCI legal. I bet he'll have to change a few adjustments, not based on aero gains, but just to fit the rules...it's a trade-off...and all depending on the riders body measurments...
Louis![]()
Low enough is not the problem. The problem comes with the front - aft position UCI "limits" ( 5cm saddle front-to-BB center - 80 cm bar end shifters, and only one exemption allowed) , and all the rider morphology problems that come with it.CrankAddictsRich wrote: ↑Wed May 22, 2019 12:51 amYes... actually... that just furthers my point.. On many Triathlon, NON-UCI bikes It can be difficult to get the front as low as you want to ruly be as fast as possible in a TT. The headtubes are taller to get riders to sit up a bit more to be compfortable for 100+ miles. For sure though, there are fit rules that need to be followed for UCI compliance that can take away some aero.LouisN wrote: ↑Tue May 21, 2019 9:00 pmA "fast" bike needs a rider on it.
IMO it's the UCI bike measurment rules that "limit" performance, based on some random numbers.
If some riders are faster than others, you have to take into account their body measurments fit better inside UCI's limits than others.
Ask a bike fitter to fit a rider based on ideal aero and performance measurments on a TT/Tri bike. Then tell him the bike fit needs to be UCI legal. I bet he'll have to change a few adjustments, not based on aero gains, but just to fit the rules...it's a trade-off...and all depending on the riders body measurments...
Louis![]()
Remember the aftermath but apart from this pic I haven’t seen any video. I guess that’s what happens when you run a disc/ sail on a super windy day!Dan Gerous wrote: ↑Wed May 22, 2019 1:13 amWith the smaller sections, the new Shiv should be much lighter and perhaps easier to handle, especially in windy conditions, something Julian Alaphilippe might be happy with, remember this?
Surely these are pushing the limitsCrankAddictsRich wrote:Custom bars for Roglic, Campenaerts and Nibali in the second TT at the Giro.
Maybe custom bars for Yates, as well?
Shiv TT Disc for Jungels and Majka in the second TT.
These bars have passed inspection by the UCI Commissars on every occasion they have been used. But, then again, that doesn't mean that on some date in the future the UCI HQ or some commissar in the field won't change their mind and declare them to be illegal.Nefarious86 wrote: ↑Wed May 22, 2019 8:17 amSurely these are pushing the limits
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pushing limits yea, but i can also see how the custom extensions pass also.