using tri frame as road bike frame?

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using tri frame as road bike frame?

Postby jeff_o » Thu Oct 13, 2011 12:06 pm

i did search this subforum but found nothing on it so i'd ask anyways.

I saw this in ebay and was wondering if you can use a time trial/tri frame for your road bike? i know unless it's ridiculously aerodynamic then it won't be conventional... but the frame below looks like a regular road bike frame.

What would be the difference?

http://www.ebay.com.au/itm/Giant-TCR-Ae ... 20bd828054
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by BNA » Thu Oct 13, 2011 12:25 pm

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Re: using tri frame as road bike frame?

Postby rkelsen » Thu Oct 13, 2011 12:25 pm

Why did he put "Cervelo" in the item title?

Those sorts of shenanigans always make my hackles rise.

jeff_o wrote:What would be the difference?

None.

Edit: Scratch that. The Giant website told me that the seat tube angle on that bike is 75 degrees. A tad steep for some, but might work for you...
Last edited by rkelsen on Thu Oct 13, 2011 12:38 pm, edited 2 times in total.
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Re: using tri frame as road bike frame?

Postby twizzle » Thu Oct 13, 2011 12:29 pm

Nope - that question has definitely been asked in the past.

(quick search)

Here.
Here.

There was another thread from someone who bought a frame (ebay?) and then wanted to use it for a commuter, but I can't find it.

Edit: Didn't look at the link before... the Aero-2 is the aero road frame, not a TT/Tri specific frame, so the seatpost angle isn't an issue. Would make a nice fast road bike.

Edit2: Bugger... seems it's not quite the same geo. as the road frame, it runs a steeper seat tube angle. So... if you like riding fast, it might be good, but if you are after a more cruisy bike then it might be a real pain getting the saddle further back.
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Re: using tri frame as road bike frame?

Postby jeff_o » Thu Oct 13, 2011 12:53 pm

@twizzle: i stand corrected, didn't find these 2 thread but thanks for posting.

btw what does SWMBO mean in the below contexts?

"I would keep the CELL but it needed to be sold to appease SWMBO into allowing a new bike. It went yesterday, hence the advert is gone."

i haven't ridden a tri bike but i noticed they have steep seat tube angle. so here's what i can decude: greater(steeper) ST angle = faster bike on flats, pain on hills and long ride; lesser ST angle = slower to pedal bike, good on hills and long rides.

what's a normal seat tube angle anyways? here's another one i'm looking at with 73.5deg.

http://www.ebay.com.au/itm/170708266708 ... 1423.l2649
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Re: using tri frame as road bike frame?

Postby sinnes » Thu Oct 13, 2011 2:03 pm

jeff_o wrote:btw what does SWMBO mean in the below contexts?


She Who Must Be Obeyed
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Re: using tri frame as road bike frame?

Postby rkelsen » Thu Oct 13, 2011 2:16 pm

jeff_o wrote:btw what does SWMBO mean in the below contexts?

O, for the life of a single man... :cry:

:lol:
jeff_o wrote:i haven't ridden a tri bike but i noticed they have steep seat tube angle. so here's what i can decude: greater(steeper) ST angle = faster bike on flats, pain on hills and long ride; lesser ST angle = slower to pedal bike, good on hills and long rides.

what's a normal seat tube angle anyways? here's another one i'm looking at with 73.5deg.

Your decoding skills are pretty good. ;)

73 to 74 degrees is considered "normal" for a road bike.

Bikes geared towards triathlons tend to have 75 degree seat tubes, because they're designed to use particular muscle groups. A steep seat tube angle puts your legs back and torso forward, allowing you to lean forward enough to effectively use the aforementioned muscles.
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Re: using tri frame as road bike frame?

Postby jeff_o » Thu Oct 13, 2011 2:38 pm

ahaha... grass is always greener the other side :) but pros n cons. by end of the day, you'd want to have someone sit beside you while you watch cycling channel.... your bike lol.

saw this article... i think i'll stick to road bike frame as i wanted to train my quads. i have fairly skinny legs and i want to grow my leg muscles.

http://www.beginnertriathlete.com/discu ... 91&start=1

i din't know TT bike is different from tri bike:

http://www.letsrun.com/forum/flat_read. ... ad=1153643
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