On 6/10/2025 9:15 PM, Frank Krygowski wrote:
On 6/10/2025 5:15 PM, Zen Cycle wrote:
Factor Bicycles revealed a new Aero bike prototype at Stage 1 of the
Critérium du Dauphiné this past sunday.
https://www.cyclingnews.com/news/how-did-they-keep-this-a-secret-
insane- new-factor-prototype-blows-minds-at-the-dauphine/
In addition to yet more aero shaping of the frame components, it uses
a Hope-style fork with extremely wide-set legs, which have been
successfully used on track bikes for several years now. The theory is
that the fork legs help shape the air around the rider's legs, as
well as allowing more of the front wheel to hit clean air.
I wonder how long that fork design will remain legal. UCI is pretty
conservative about visible aero tricks.
It's been legal for track bikes for several years now. Granted, the
rules for track bikes are a little different, but as of now certain
things like aerodynamic features on road and track frames alike are
limited. I give it a much better chance than usual for staying around.
On 6/19/2025 4:56 PM, Zen Cycle wrote:
On 6/11/2025 5:33 AM, zen cycle wrote:
On 6/10/2025 9:15 PM, Frank Krygowski wrote:
On 6/10/2025 5:15 PM, Zen Cycle wrote:
Factor Bicycles revealed a new Aero bike prototype at Stage 1 of
the Critérium du Dauphiné this past sunday.
https://www.cyclingnews.com/news/how-did-they-keep-this-a-secret-
insane- new-factor-prototype-blows-minds-at-the-dauphine/
In addition to yet more aero shaping of the frame components, it
uses a Hope-style fork with extremely wide-set legs, which have
been successfully used on track bikes for several years now. The
theory is that the fork legs help shape the air around the rider's
legs, as well as allowing more of the front wheel to hit clean air.
I wonder how long that fork design will remain legal. UCI is pretty
conservative about visible aero tricks.
It's been legal for track bikes for several years now. Granted, the
rules for track bikes are a little different, but as of now certain
things like aerodynamic features on road and track frames alike are
limited. I give it a much better chance than usual for staying around.
https://www.uci.org/pressrelease/the-uci-approves-the-2026-calendars-
for-the-uci-womens-worldtour-and-uci/4Eom6DCpjNwy5BeppuLXg3
"For bicycles used in the road (as of 1 January 2026) and track (as of
1 January 2027) disciplines, only a maximum internal fork width of 115
mm at the front and 145 mm at the rear (measured along the entire
length of the front fork and rear triangle) will be permitted."
Does that mean the radical forks in the article will not be allowed? <https://www.cyclingnews.com/news/how-did-they-keep-this-a-secret- insane-new-factor-prototype-blows-minds-at-the-dauphine>
On 6/19/2025 5:40 PM, Frank Krygowski wrote:
On 6/19/2025 4:56 PM, Zen Cycle wrote:
On 6/11/2025 5:33 AM, zen cycle wrote:
On 6/10/2025 9:15 PM, Frank Krygowski wrote:
On 6/10/2025 5:15 PM, Zen Cycle wrote:
Factor Bicycles revealed a new Aero bike prototype at Stage 1 ofI wonder how long that fork design will remain legal. UCI is pretty
the Critérium du Dauphiné this past sunday.
https://www.cyclingnews.com/news/how-did-they-keep-this-a-secret-
insane- new-factor-prototype-blows-minds-at-the-dauphine/
In addition to yet more aero shaping of the frame components, it
uses a Hope-style fork with extremely wide-set legs, which have
been successfully used on track bikes for several years now. The
theory is that the fork legs help shape the air around the rider's >>>>>> legs, as well as allowing more of the front wheel to hit clean air. >>>>>
conservative about visible aero tricks.
It's been legal for track bikes for several years now. Granted, the
rules for track bikes are a little different, but as of now certain
things like aerodynamic features on road and track frames alike are
limited. I give it a much better chance than usual for staying around.
https://www.uci.org/pressrelease/the-uci-approves-the-2026-calendars-
for-the-uci-womens-worldtour-and-uci/4Eom6DCpjNwy5BeppuLXg3
"For bicycles used in the road (as of 1 January 2026) and track (as of
1 January 2027) disciplines, only a maximum internal fork width of 115
mm at the front and 145 mm at the rear (measured along the entire
length of the front fork and rear triangle) will be permitted."
Does that mean the radical forks in the article will not be allowed?
<https://www.cyclingnews.com/news/how-did-they-keep-this-a-secret-
insane-new-factor-prototype-blows-minds-at-the-dauphine>
I don't know. I can't find any information about that fork spacing. That said, this ruling also by definition limits hub spacing, which I don't
think was covered before this.
zen cycle <funkmasterxx@hotmail.com> wrote:
On 6/19/2025 5:40 PM, Frank Krygowski wrote:
On 6/19/2025 4:56 PM, Zen Cycle wrote:
On 6/11/2025 5:33 AM, zen cycle wrote:
On 6/10/2025 9:15 PM, Frank Krygowski wrote:https://www.uci.org/pressrelease/the-uci-approves-the-2026-calendars-
On 6/10/2025 5:15 PM, Zen Cycle wrote:
Factor Bicycles revealed a new Aero bike prototype at Stage 1 of >>>>>>> the Critérium du Dauphiné this past sunday.I wonder how long that fork design will remain legal. UCI is pretty >>>>>> conservative about visible aero tricks.
https://www.cyclingnews.com/news/how-did-they-keep-this-a-secret- >>>>>>> insane- new-factor-prototype-blows-minds-at-the-dauphine/
In addition to yet more aero shaping of the frame components, it >>>>>>> uses a Hope-style fork with extremely wide-set legs, which have
been successfully used on track bikes for several years now. The >>>>>>> theory is that the fork legs help shape the air around the rider's >>>>>>> legs, as well as allowing more of the front wheel to hit clean air. >>>>>>
It's been legal for track bikes for several years now. Granted, the
rules for track bikes are a little different, but as of now certain
things like aerodynamic features on road and track frames alike are
limited. I give it a much better chance than usual for staying around. >>>>
for-the-uci-womens-worldtour-and-uci/4Eom6DCpjNwy5BeppuLXg3
"For bicycles used in the road (as of 1 January 2026) and track (as of >>>> 1 January 2027) disciplines, only a maximum internal fork width of 115 >>>> mm at the front and 145 mm at the rear (measured along the entire
length of the front fork and rear triangle) will be permitted."
Does that mean the radical forks in the article will not be allowed?
<https://www.cyclingnews.com/news/how-did-they-keep-this-a-secret-
insane-new-factor-prototype-blows-minds-at-the-dauphine>
I don't know. I can't find any information about that fork spacing. That
said, this ruling also by definition limits hub spacing, which I don't
think was covered before this.
In an unwise move seem to be going after gearing which does feel like it’s stifling innovation.
https://www.cyclingnews.com/news/uci-to-trial-rule-that-technically-makes-tyres-over-28mm-illegal-with-huge-implications-for-sram-sponsored-teams/
Which will be a headache for riders using SRAM as their cassettes have a
10t sprocket.
I’d say they need to think again.
Roger Merriman
On 6/20/2025 9:12 AM, Roger Merriman wrote:
zen cycle <funkmasterxx@hotmail.com> wrote:
On 6/19/2025 5:40 PM, Frank Krygowski wrote:
On 6/19/2025 4:56 PM, Zen Cycle wrote:
On 6/11/2025 5:33 AM, zen cycle wrote:
On 6/10/2025 9:15 PM, Frank Krygowski wrote:https://www.uci.org/pressrelease/the-uci-approves-the-2026-calendars- >>>>> for-the-uci-womens-worldtour-and-uci/4Eom6DCpjNwy5BeppuLXg3
On 6/10/2025 5:15 PM, Zen Cycle wrote:
Factor Bicycles revealed a new Aero bike prototype at Stage 1 of >>>>>>>> the Critérium du Dauphiné this past sunday.I wonder how long that fork design will remain legal. UCI is pretty >>>>>>> conservative about visible aero tricks.
https://www.cyclingnews.com/news/how-did-they-keep-this-a-secret- >>>>>>>> insane- new-factor-prototype-blows-minds-at-the-dauphine/
In addition to yet more aero shaping of the frame components, it >>>>>>>> uses a Hope-style fork with extremely wide-set legs, which have >>>>>>>> been successfully used on track bikes for several years now. The >>>>>>>> theory is that the fork legs help shape the air around the rider's >>>>>>>> legs, as well as allowing more of the front wheel to hit clean air. >>>>>>>
It's been legal for track bikes for several years now. Granted, the >>>>>> rules for track bikes are a little different, but as of now certain >>>>>> things like aerodynamic features on road and track frames alike are >>>>>> limited. I give it a much better chance than usual for staying around. >>>>>
"For bicycles used in the road (as of 1 January 2026) and track (as of >>>>> 1 January 2027) disciplines, only a maximum internal fork width of 115 >>>>> mm at the front and 145 mm at the rear (measured along the entire
length of the front fork and rear triangle) will be permitted."
Does that mean the radical forks in the article will not be allowed?
<https://www.cyclingnews.com/news/how-did-they-keep-this-a-secret-
insane-new-factor-prototype-blows-minds-at-the-dauphine>
I don't know. I can't find any information about that fork spacing. That >>> said, this ruling also by definition limits hub spacing, which I don't
think was covered before this.
In an unwise move seem to be going after gearing which does feel like it’s >> stifling innovation.
https://www.cyclingnews.com/news/uci-to-trial-rule-that-technically-makes-tyres-over-28mm-illegal-with-huge-implications-for-sram-sponsored-teams/
Which will be a headache for riders using SRAM as their cassettes have a
10t sprocket.
I’d say they need to think again.
Roger Merriman
Even more short sighted are the new handlebar width restrictions - they
make no allowance whatsoever for people of smaller stature, women in particular. With a new limit of a minimum 38cm, fully half the womens professional peloton are now illegal.
Zen Cycle <funkmaster@hotmail.com> wrote:
On 6/20/2025 9:12 AM, Roger Merriman wrote:I would hope and expect this to be dropped! Narrow bars unless ultra narrow for the rider aren’t that much of risk apparently do get used to them and all that, not as good handling wise but not as bad as folks might think.
zen cycle <funkmasterxx@hotmail.com> wrote:
On 6/19/2025 5:40 PM, Frank Krygowski wrote:
On 6/19/2025 4:56 PM, Zen Cycle wrote:
On 6/11/2025 5:33 AM, zen cycle wrote:
On 6/10/2025 9:15 PM, Frank Krygowski wrote:https://www.uci.org/pressrelease/the-uci-approves-the-2026-calendars- >>>>>> for-the-uci-womens-worldtour-and-uci/4Eom6DCpjNwy5BeppuLXg3
On 6/10/2025 5:15 PM, Zen Cycle wrote:
Factor Bicycles revealed a new Aero bike prototype at Stage 1 of >>>>>>>>> the Critérium du Dauphiné this past sunday.I wonder how long that fork design will remain legal. UCI is pretty >>>>>>>> conservative about visible aero tricks.
https://www.cyclingnews.com/news/how-did-they-keep-this-a-secret- >>>>>>>>> insane- new-factor-prototype-blows-minds-at-the-dauphine/
In addition to yet more aero shaping of the frame components, it >>>>>>>>> uses a Hope-style fork with extremely wide-set legs, which have >>>>>>>>> been successfully used on track bikes for several years now. The >>>>>>>>> theory is that the fork legs help shape the air around the rider's >>>>>>>>> legs, as well as allowing more of the front wheel to hit clean air. >>>>>>>>
It's been legal for track bikes for several years now. Granted, the >>>>>>> rules for track bikes are a little different, but as of now certain >>>>>>> things like aerodynamic features on road and track frames alike are >>>>>>> limited. I give it a much better chance than usual for staying around. >>>>>>
"For bicycles used in the road (as of 1 January 2026) and track (as of >>>>>> 1 January 2027) disciplines, only a maximum internal fork width of 115 >>>>>> mm at the front and 145 mm at the rear (measured along the entire
length of the front fork and rear triangle) will be permitted."
Does that mean the radical forks in the article will not be allowed? >>>>> <https://www.cyclingnews.com/news/how-did-they-keep-this-a-secret-
insane-new-factor-prototype-blows-minds-at-the-dauphine>
I don't know. I can't find any information about that fork spacing. That >>>> said, this ruling also by definition limits hub spacing, which I don't >>>> think was covered before this.
In an unwise move seem to be going after gearing which does feel like it’s
stifling innovation.
https://www.cyclingnews.com/news/uci-to-trial-rule-that-technically-makes-tyres-over-28mm-illegal-with-huge-implications-for-sram-sponsored-teams/
Which will be a headache for riders using SRAM as their cassettes have a >>> 10t sprocket.
I’d say they need to think again.
Roger Merriman
Even more short sighted are the new handlebar width restrictions - they
make no allowance whatsoever for people of smaller stature, women in
particular. With a new limit of a minimum 38cm, fully half the womens
professional peloton are now illegal.
Let alone number of smaller folks who would absolutely do better with
smaller bars and frames, who are still poorly served by bike manufacturers.
Roger Merriman
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