Dieter ( ͡° ͜ʖ ͡°) Posted September 2, 2016 Share "The UCI code states that the ratio between the length and the width of equipment cannot exceed 3:1. This means that extreme aerodynamic tube shapes cannot be used in legal race bike frames, handlebars or other components and for years this rule has heavily influenced and restricted bike frame design." Link to comment Share on other sites More sharing options...
Pure Savage Posted September 2, 2016 Share "The UCI code states that the ratio between the length and the width of equipment cannot exceed 3:1. This means that extreme aerodynamic tube shapes cannot be used in legal race bike frames, handlebars or other components and for years this rule has heavily influenced and restricted bike frame design." Link? Link to comment Share on other sites More sharing options...
Dieter ( ͡° ͜ʖ ͡°) Posted September 2, 2016 Share Link?http://www.cyclingweekly.co.uk/news/latest-news/uci-set-to-scrap-rule-limiting-aero-bike-design-281563 Huge deal if it happens! Everything pre-2018 could be obsolete at high levels. Link to comment Share on other sites More sharing options...
Long Wheel Base Posted September 2, 2016 Share So you saying the VIAS VENGE can now get even more aero? Link to comment Share on other sites More sharing options...
shaper Posted September 2, 2016 Share look like everything will become aero!! Link to comment Share on other sites More sharing options...
Pure Savage Posted September 2, 2016 Share First scrap the stupid weight limit. Captain Fastbastard Mayhem, GLuvsMtb, Ryno. and 1 other 4 Link to comment Share on other sites More sharing options...
eddy Posted September 2, 2016 Share look like everything will become aero!! Ignoring the wheels where positioning and profile are significant, what does it actually mean if a frame becomes twice as Aero ? Surely what is important is the total aerodynamic improvement of the bike and rider? As the rider has by far the biggest frontal area, where you position the rear brake must surely be irrelevant. Edited September 2, 2016 by eddy Link to comment Share on other sites More sharing options...
Long Wheel Base Posted September 2, 2016 Share Ignoring the wheels where positioning and profile are significant, what does it actually mean if a frame becomes twice as Aero ? Surely what is important is the total aerodynamic improvement of the bike and rider? As the rider has by far the biggest frontal area, where you position the rear brake must surely be irrelevant. eddy and Pah Bear 2 Link to comment Share on other sites More sharing options...
Pah Bear Posted September 2, 2016 Share cervelowraamfairing2.jpgGreat example to prove a point. Long Wheel Base 1 Link to comment Share on other sites More sharing options...
HappyMartin Posted September 2, 2016 Share cervelowraamfairing2.jpgNever break another collar bone with that contraption. Long Wheel Base 1 Link to comment Share on other sites More sharing options...
jimmycool Posted September 2, 2016 Share "The UCI code states that the ratio between the length and the width of equipment cannot exceed 3:1. This means that extreme aerodynamic tube shapes cannot be used in legal race bike frames, handlebars or other components and for years this rule has heavily influenced and restricted bike frame design."Until someone cuts themselves on a really thin section of the frame and then they will be promptly banned again just like the disc rotors. Link to comment Share on other sites More sharing options...
shawnvan Posted September 2, 2016 Share Bike manufacturers have ignored this UCI rule for years with their tri-specific bikes and this hasn't had a dramatic effect. Eg. the Spez Shiv TT (UCI legal) is probably faster than the Shiv Tri version (non-UCI legal), and top UCI legal TT bikes like the Cervelo P5, Trek and new Canyon Speedmax are probably still faster than most non-UCI legal ones. Also the wacky frame shapes like beam bikes etc. seem to have serious stiffness issues, so what you might gain in aero you lose on stiffness. By far the biggest factor is the rider profile, not the frame. pista 1 Link to comment Share on other sites More sharing options...
Pah Bear Posted September 2, 2016 Share http://www.cyclingweekly.co.uk/news/latest-news/uci-set-to-scrap-rule-limiting-aero-bike-design-281563 Huge deal if it happens! Everything pre-2018 could be obsolete at high levels. Thanx. Informative. Bike manufacturers have ignored this UCI rule for years with their tri-specific bikes and this hasn't had a dramatic effect. Eg. the Spez Shiv TT (UCI legal) is probably faster than the Shiv Tri version (non-UCI legal), and top UCI legal TT bikes like the Cervelo P5, Trek and new Canyon Speedmax are probably still faster than most non-UCI legal ones. Also the wacky frame shapes like beam bikes etc. seem to have serious stiffness issues, so what you might gain in aero you lose on stiffness. By far the biggest factor is the rider profile, not the frame. If you watch the cyclingnews link above, I think it's pretty clear there is a definite benefit to aero frames. Mongoose! 1 Link to comment Share on other sites More sharing options...
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