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how much speed am i giving up w/old tri bike?
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cyclingamy
Jul 2, 09 12:20
Post #1 of 31 (1139 views)
how much speed am i giving up w/old tri bike?
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I've raced with a 2002 Quintana Roo Ti-Phoon for 7 years now. I really love the bike, very comfortable and responsive...but curious how much time i'm likely giving up vs. a new, more aero frame? If it helps, i usually average 21-22mph for Oly distance, 19-20 for half-IM.
R10C
Jul 2, 09 12:21
Post #2 of 31 (1135 views)
Re: how much speed am i giving up w/old tri bike? [cyclingamy]
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0- nothing - nada
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f.k.a - Record9, Record9ti Record10, Record10ti, Record10Carbon, but not SuperRecord11 as there are no bar ends.
jyeager
Jul 2, 09 12:38
Post #3 of 31 (1099 views)
Re: how much speed am i giving up w/old tri bike? [cyclingamy]
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In Reply To:
I've raced with a 2002 Quintana Roo Ti-Phoon for 7 years now. I really love the bike, very comfortable and responsive...but curious how much time i'm likely giving up vs. a new, more aero frame? If it helps, i usually average 21-22mph for Oly distance, 19-20 for half-IM.
Far less than you think....assuming that changing frames wouldn't change your position on the bike.
But if the new bike facilitates a better position then it could result in a fair improvement.
jackmott
Jul 2, 09 12:40
Post #4 of 31 (1089 views)
Re: how much speed am i giving up w/old tri bike? [cyclingamy]
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I've raced with a 2002 Quintana Roo Ti-Phoon for 7 years now. I really love the bike, very comfortable and responsive...but curious how much time i'm likely giving up vs. a new, more aero frame? If it helps, i usually average 21-22mph for Oly distance, 19-20 for half-IM.
maybe 0.25mph on a p4?
=)
----
What is good in life? - To crush your enemie's dreams, see them dropped behind you, and to hear the lamentation of their women!
Sunglasses:
http://www.framesdirect.com/sunglasses
Tri Gear:
http://www.atctrishop.com
Cheap Disc Wheel -
http://www.wheelbuilder.com
Tire Crr Data -
http://www.biketechreview.com
boilermaker_yv
Jul 2, 09 13:54
Post #5 of 31 (1004 views)
Re: how much speed am i giving up w/old tri bike? [cyclingamy]
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It's not the arrow but the Indian
Everything is possible for him who believes
cheyou
Jul 2, 09 14:20
Post #6 of 31 (969 views)
Re: how much speed am i giving up w/old tri bike? [reiuribe]
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It's not the arrow but the Indian
what bull shit that is.
it's both !
Guess you never shot a bear .
Wrong arrow n the bear eats well .
KINGMurphy'sLaw
Jul 2, 09 14:25
Post #7 of 31 (957 views)
Re: how much speed am i giving up w/old tri bike? [cyclingamy]
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Assuming you can achieve the same aero position on your current bike (a fairly safe assumption) as on a new uber-bike, probably a fraction of a mph in avg speed.
For all our spanking it about the most aero this or that on the bike, it is a fairly neglible part of the overall equation.
Not that I'm not lusting for a new ride or anything, I still am. :-)
I just can't really justify it logically is all.
float
,
hammer
, and
jog
*** On hiatus from 11/1/09 - 4/1/10 ***
Devlin
Jul 2, 09 14:25
Post #8 of 31 (955 views)
Re: how much speed am i giving up w/old tri bike? [cheyou]
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In Reply To:
In Reply To:
It's not the arrow but the Indian
what bull shit that is.
it's both !
Guess you never shot a bear .
Wrong arrow n the bear eats well .
Was that an attempt at humor?
Sponsors:
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That is 11 dimensions of awesome. Yes, string theory is necessary to fully appreciate the meta-nature of your post.-DaveRoche
Tom A.
Jul 2, 09 14:37
Post #9 of 31 (928 views)
Re: how much speed am i giving up w/old tri bike? [cyclingamy]
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In Reply To:
I've raced with a 2002 Quintana Roo Ti-Phoon for 7 years now. I really love the bike, very comfortable and responsive...but curious how much time i'm likely giving up vs. a new, more aero frame? If it helps, i usually average 21-22mph for Oly distance, 19-20 for half-IM.
Depending on what you're comparing it to...it could be as much as 1.5-2s per kilometer (or MORE!), all other things being equal (i.e. position, clothing, power, etc.) of course ;-)
And...unlike the folks saying "none", I've got actual "on the road" data that backs me up :-)
See:
"Something Borrowed...Something Fast!"
torrey
Jul 2, 09 14:53
Post #10 of 31 (902 views)
Re: how much speed am i giving up w/old tri bike? [Tom A.]
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So you are agreeing with jackmott, about 0.25 mph at 20 mph if I do the math right. I guess it depends on you definition of none vs a lot in terms of speed difference.
cyclingamy
Jul 2, 09 15:54
Post #11 of 31 (856 views)
Re: how much speed am i giving up w/old tri bike? [jyeager]
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is the negligible difference due largely to the fact that i'm relatively "slow"? If my average speed were 23mph for Oly distance, would a better (more aero, etc) bike make more of a difference?
Tom A.
Jul 2, 09 16:05
Post #12 of 31 (840 views)
Re: how much speed am i giving up w/old tri bike? [torrey]
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So you are agreeing with jackmott, about 0.25 mph at 20 mph if I do the math right. I guess it depends on you definition of none vs a lot in terms of speed difference.
Almost...at 20mph, 1.5-2s/km of time savings would relate to more like .3-.4 mph difference. That said, I prefer to deal with s/km instead of speed since invariably the next question is "How much time will that save me" ;-)
With the new "super bikes" coming out now, those time savings could be much greater.
Tom A.
Jul 2, 09 16:13
Post #13 of 31 (826 views)
Re: how much speed am i giving up w/old tri bike? [cyclingamy]
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is the negligible difference due largely to the fact that i'm relatively "slow"? If my average speed were 23mph for Oly distance, would a better (more aero, etc) bike make more of a difference?
Do you consider 1 minute to 1:20 time savings over an Oly bike leg "negligible"?
Actually, even though it seem counterintuitive, on a time-savings basis, you'd actually save MORE time for a given drag savings if you're slower. That's because courses aren't run in a "how fast can you go for a given time period" basis, but rather on a "how fast can you go a fixed distance" basis. The math works out differently.
Cervelo has a good presentation on this subject:
http://www.cervelo.com/...&i=WhitePapers#3
That said, before you go switching frames, I'd first look at what tires and tubes you're running to get some easy "gains" there first ;-)
Scott Herrick
Jul 3, 09 11:28
Post #14 of 31 (657 views)
Re: how much speed am i giving up w/old tri bike? [cyclingamy]
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Keep the current bike but make sure your BB gets fresh grease and your pedals, chain, and pulleys are serviced--make a big difference if you haven't done it in several years, especially the BB.
Scott
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Zurich, Switzerland
www.scottherrick.com
nproximos
Jul 3, 09 11:47
Post #15 of 31 (645 views)
Re: how much speed am i giving up w/old tri bike? [cyclingamy]
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if youre really comfortable why change that? im not sure what kind of wheels and components you have on your bike, but if you just have to buy something, go with those upgrades.
jackmott
Jul 3, 09 11:52
Post #16 of 31 (639 views)
Re: how much speed am i giving up w/old tri bike? [Tom A.]
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damn, my pull guess out of ass method was in the right order of magnitude
awesome
In Reply To:
In Reply To:
So you are agreeing with jackmott, about 0.25 mph at 20 mph if I do the math right. I guess it depends on you definition of none vs a lot in terms of speed difference.
Almost...at 20mph, 1.5-2s/km of time savings would relate to more like .3-.4 mph difference. That said, I prefer to deal with s/km instead of speed since invariably the next question is "How much time will that save me" ;-)
With the new "super bikes" coming out now, those time savings could be much greater.
----
What is good in life? - To crush your enemie's dreams, see them dropped behind you, and to hear the lamentation of their women!
Sunglasses:
http://www.framesdirect.com/sunglasses
Tri Gear:
http://www.atctrishop.com
Cheap Disc Wheel -
http://www.wheelbuilder.com
Tire Crr Data -
http://www.biketechreview.com
hgrong
Jul 3, 09 11:56
Post #17 of 31 (629 views)
Re: how much speed am i giving up w/old tri bike? [Tom A.]
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It's funny to me that all the replies telling her to keep the bike are just ignoring your post.
To me, at least, .3-.4 mph difference would be worth an upgrade. Unfortunately, I don't have the coin.
cerveloguy
Jul 3, 09 12:18
Post #18 of 31 (608 views)
Re: how much speed am i giving up w/old tri bike? [cyclingamy]
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If your QR is anything like my old QR Kilo with those big fat round tubes, you're definately giving up something to an aero frame if all other factors are equal. I'll guestimate maybe a minute or so over 40 kms?
Tom A.
Jul 3, 09 13:16
Post #19 of 31 (576 views)
Re: how much speed am i giving up w/old tri bike? [hgrong]
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It's funny to me that all the replies telling her to keep the bike are just ignoring your post.
To me, at least, .3-.4 mph difference would be worth an upgrade. Unfortunately, I don't have the coin.
They have to ignore it or else suffer from cognitive dissonance ;-)
tengo_hambre
Jul 3, 09 13:27
Post #20 of 31 (558 views)
Re: how much speed am i giving up w/old tri bike? [cyclingamy]
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sorry to hijack, but i figure it's better than clogging the forum with a new thread on the same subject...i currently ride an 07 felt F4 road bike with DA/ultegra mix, a standard road drop bar, profile carbon stryke clip-ons and a profile FFC seatpost, my position is relatively comfortable, though could probably be better. My PR is 24.2 mph on a rolling hilly course (a few weeks back), i haven't ridden a flat one recently. assuming the same position, would i be looking at a significant time savings with an aerodynamic frameset? what about if i replaced the drop bars with bullhorns on the current one?
____________________________________________
Hungry for tri!
nproximos
Jul 3, 09 13:31
Post #21 of 31 (551 views)
Re: how much speed am i giving up w/old tri bike? [hgrong]
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maybe because the people telling her to keep her bike arent grossly rich, arent retailers of any kind, or believe that being comfortable and in a good position is more important that a slight benefit in aerodynamics an aero frame could offer.
even if it could add .3-.4 mph increases based on drag numbers, what happens if the op doesnt feel the same way on the bike?
LazyEP
Jul 3, 09 16:10
Post #22 of 31 (496 views)
Re: how much speed am i giving up w/old tri bike? [cyclingamy]
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I've got a sprint tri in a week where I'll be using a 1985 Specialized Allez ("American Flyers") with clip on aero bars, down tube shifters, 36 spoke wheels & I'll be competitive & have fun doing it. If you can't afford a new toy, get your existing ride tuned up completely, think about new wheels & enjoy the experience. No doubt you'll beat people with $6K+ unobtaineum machines. It's not all about the bike.
Sean Phelps
"It's not the age sweetheart. It's the mileage."
Dr. Henry "Indiana" Jones, Jr.
Dave Luscan
Jul 3, 09 16:31
Post #23 of 31 (487 views)
Re: how much speed am i giving up w/old tri bike? [Tom A.]
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I would have WAG .35 I would also guestimate that that .35 mph would take me 9-12 more watts ay my current 40k tt speed. I hope to put 10-15 watts on my FTP in the next 6 months. So yeah 6 months worth of training or a new bike....I'll take what's behind both doors please. Double down so to speak.
Dave Luscan
www.endorphinfitness.com
Tom A.
Jul 3, 09 17:16
Post #24 of 31 (459 views)
Re: how much speed am i giving up w/old tri bike? [nproximos]
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Even if it could add .3-.4 mph increases based on drag numbers, what happens if the op doesnt feel the same way on the bike?
That would mean that something went wrong with transferring her saddle and fit coordinates over to the new bike, or the wrong frame was selected.
Tom A.
Jul 3, 09 17:18
Post #25 of 31 (458 views)
Re: how much speed am i giving up w/old tri bike? [Dave Luscan]
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General reply
I would have WAG .35 I would also guestimate that that .35 mph would take me 9-12 more watts ay my current 40k tt speed. I hope to put 10-15 watts on my FTP in the next 6 months. So yeah 6 months worth of training or a new bike....I'll take what's behind both doors please. Double down so to speak.
Dave Luscan
www.endorphinfitness.com
Yup...me too :-)
Now I just need to scrape up the scratch to get me one of them "superbikes" ;-)
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