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High end roadbike vs high end tri bike
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Hi guys,

I'm new to triathlons and have done a few olympics and sprints. Will try a half IM in 2013. The bike leg is normally my strongest leg although I'm not crazy fast but I find it the easiest. I can do around 19mph on a hilly course in an Olympic tri.

I ride a 2012 Tarmac Sworks sram red... Thinking about getting the 2012 Shiv Sworks.. how much faster, realistically will I gain from this kind of bike on the same hilly course?
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Re: High end roadbike vs high end tri bike [125mph] [ In reply to ]
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If is a really hilly course, I don't think you'll gain much more by using a tri bike.
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Re: High end roadbike vs high end tri bike [125mph] [ In reply to ]
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It depends, drastically.

If your current road position is low and narrow, you look like greg lemond, and all you do is swap a tri frame for your road frame, then maybe you finish 30 seconds faster.

If your current road position is upright and you switch to a tri frame and remain upright, then maybe just 30 seconds faster.

If on the other hand your current position is upright and you get in a good, low position on an aero tri frame and disc rear and aero front wheel with fast tires and an aero helmet and a skin suit - minutes faster

It is the sum of many things that make a good bike setup fast, but one of the most important is being in a good position, which a tri frame will make easier to achieve.



125mph wrote:
Hi guys,

I'm new to triathlons and have done a few olympics and sprints. Will try a half IM in 2013. The bike leg is normally my strongest leg although I'm not crazy fast but I find it the easiest. I can do around 19mph on a hilly course in an Olympic tri.

I ride a 2012 Tarmac Sworks sram red... Thinking about getting the 2012 Shiv Sworks.. how much faster, realistically will I gain from this kind of bike on the same hilly course?



Kat Hunter reports on the San Dimas Stage Race from inside the GC winning team
Aeroweenie.com -Compendium of Aero Data and Knowledge
Freelance sports & outdoors writer Kathryn Hunter
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Re: High end roadbike vs high end tri bike [125mph] [ In reply to ]
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42

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What if the Hokey Pokey is what it is all about?
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Re: High end roadbike vs high end tri bike [R10C] [ In reply to ]
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R10C wrote:
42

You lying bastard you know it's 41.649. Get it right Chip!
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Re: High end roadbike vs high end tri bike [tigerpaws] [ In reply to ]
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  • Given 27 same-size cubes whose nominal values progress from 1 to 27, a 333 magic cube can be constructed such that every row, column, and corridor, and every diagonal passing through the center, is composed of 3 cubes whose sum of values is 42.
  • Forty-two is a pronic number and an abundant number; its prime factorization 2 3 7 makes it the second sphenic number and also the second of the form { 2 3 r }. As with all sphenic numbers of this form, the aliquot sum is abundant by 12. 42 is also the second sphenic number to be bracketed by twin primes; 30 is also a pronic number and also rests between two primes. 42 has a 14 member aliquot sequence 42, 54, 66, 78, 90, 144, 259, 45, 33, 15, 9, 4, 3, 1, 0 and is itself part of the aliquot sequence commencing with the first sphenic number 30. Further, 42 is the 10th member of the 3-aliquot tree.
  • 42 is the product of the first three terms of Sylvester's sequence; like the first five such numbers it is also a primary pseudoperfect number.
  • It is a Catalan number. Consequently; 42 is the number of noncrossing partitions of a set of five elements, the number of triangulations of a heptagon, the number of rooted ordered binary trees with six leaves, the number of ways in which five pairs of nested parentheses can be arranged, etc.
  • It is the reciprocal of the sixth Bernoulli number.
  • It is conjectured to be the scaling factor in the leading order term of the "sixth moment of the Riemann zeta function". In particular, Conrey & Ghosh have conjectured


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What if the Hokey Pokey is what it is all about?
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Re: High end roadbike vs high end tri bike [R10C] [ In reply to ]
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Dammit you are right again it IS 42.
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Re: High end roadbike vs high end tri bike [125mph] [ In reply to ]
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Assuming an upright road position, if you were to upgrade to TT bike, rock some deep wheels/disk, aero helmut and all the goodies ... you are looking at moving that 19 to about 20-21.5 without any fitness increase.
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Re: High end roadbike vs high end tri bike [R10C] [ In reply to ]
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My head hurts after reading what r10c wrote.
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Re: High end roadbike vs high end tri bike [karbon phiber] [ In reply to ]
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karbon phiber wrote:
My head hurts after reading what r10c wrote.


Hahahaha.....you actually read that??
Last edited by: Shane_W: May 17, 12 11:54
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Re: High end roadbike vs high end tri bike [R10C] [ In reply to ]
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It is also the answer to "life, the universe and everything" and is why the white mice constructed the computer known as earth!

I didn't know all those other things though.

BC Don
Pain is temporary, not giving it your all lasts all Winter.
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Re: High end roadbike vs high end tri bike [Shane_W] [ In reply to ]
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Shane_W wrote:
karbon phiber wrote:
My head hurts after reading what r10c wrote.


Hahahaha.....you actually read that??
Guess I'm a glutton for punishment. And I thought I would learn something today but I think I need a higher IQ to figure out what he wrote.
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Re: High end roadbike vs high end tri bike [karbon phiber] [ In reply to ]
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Shit, that was copy pasted from Wiki....all I care is that Douglass Adams has me convinced.

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What if the Hokey Pokey is what it is all about?
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Re: High end roadbike vs high end tri bike [125mph] [ In reply to ]
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I would search this topic. Discussed ad nauseum.

The reason why a tri bike is faster is that it allows you to decrease drag significantly if you get in the right position. You can go faster with equal effort.

___________
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Re: High end roadbike vs high end tri bike [mike@wahoo] [ In reply to ]
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mike@wahoo wrote:
I would search this topic. Discussed ad nauseum.

The reason why a tri bike is faster is that it allows you to decrease drag significantly if you get in the right position. You can go faster with equal effort.

Oh I know its faster and that it decreases drag/saves leg muscles... I just want to know how much faster is that $10K going to make me :)... lol

But ya, if I can get my bike from 19 to 21MPH that would be sick, for similar effort and fitness...
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Re: High end roadbike vs high end tri bike [mike@wahoo] [ In reply to ]
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That is a pretty big if -

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What if the Hokey Pokey is what it is all about?
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Re: High end roadbike vs high end tri bike [125mph] [ In reply to ]
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Pretty unscientific, but what the hell. This gives you an idea of going from a road bike (and typical roadie set up) to TT bike (with all the aero bells and whistles). Doesn't really answer your question at all, but anyway...

I plotted my TT speeds for the past year for a 10 mile TT. You can see my improvement over the year. I recently rode the course on my road bike.

The TT bike was on an 80mm front and disk rear, road bike was on 50mm front and back. TT bike uses aero helmet, road bike used normal helmet. Clothes were the same. Road bike was ridden in aggressive 'TT-like' position. Power was similar to the recent TT performances. Conditions slightly worse than the TT sessions either side, so I would say speed difference was about 1MPH.


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Re: High end roadbike vs high end tri bike [Shg101] [ In reply to ]
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