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How much faster on a TT bike?

vjohnson's picture
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started by vjohnson on October 20, 2007

Due to a lack of funds I do most of my tri-racing on a road bike, it is a middle of the road cannondale. I've finally saved enough pennies to get that dream TT bike. So..... how much faster can I expect to go??? Over the years I've averaged 20mph on hilling courses, and 22mph on flat courses, both half ironman distance. What kind of change could I see just by getting on a felt B2 with Zipp race wheels??? Thanks, vinny

Stringcheese's picture
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Stringcheese posted 37 weeks ago.

You can buy speed and you just did. Congratulations...

I don't think anyone here can tell you how many mph faster you will be on the B2, but you will be faster. That is a promise.

Gary3's picture
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Gary3 posted 37 weeks ago.

vjohnson;83144 wrote:
Due to a lack of funds I do most of my tri-racing on a road bike, it is a middle of the road cannondale. I've finally saved enough pennies to get that dream TT bike. So..... how much faster can I expect to go??? Over the years I've averaged 20mph on hilling courses, and 22mph on flat courses, both half ironman distance. What kind of change could I see just by getting on a felt B2 with Zipp race wheels??? Thanks, vinny

About a 6 to 7 % increase

DSmith's picture
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DSmith posted 36 weeks ago.

I went from a Trek Equinox 7 TT bike to the B2 with Zipp 808's and saw about a 1-2 mph difference in speed. I also look fast now, even if I am just standing by the bike.

PrinceofClydes's picture
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PrinceofClydes posted 36 weeks ago.

DSmith;83161 wrote:
I went from a Trek Equinox 7 TT bike to the B2 with Zipp 808's and saw about a 1-2 mph difference in speed. I also look fast now, even if I am just standing by the bike.

1-2MPH?! Wow.

Sounds like the bike inspired you to greater performance - which is legit and understandable. A better riding position may also account for some of that improvement.

Over a short course I would guess the difference attributable exclusively to the bike is negligible for riders already doing 22mph.

Over a longer course, say 90 - 180k there would be a measurable difference, however, you may not be able to sustain the new position for that long the first time you get on the bike. Expect your body to need time to adjust to the forward riding position to be able to take the greatest advantage of it.

Then, when you are comfortable on it for several hours of sustained effort, will you finally see what you have paid for. I'm just saying - be patient. Don't expect to jump on a new bike with a different set-up and suddenly see yourself riding like Cancellara. Initially you may even be slower because you are already riding pretty well and the change can upset your rhythm. 22mph is nothing to sniff at.

Congratulaions on your new bike.

"Pain doesn't last, chicks dig scars, glory is forever!"
- Shane Falco.

DSmith's picture
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DSmith posted 36 weeks ago.

Bike setup I am sure had a lot to do with it. My Trek was bought used and I was never professionally fitted. The Felt was bought new and I spent several hours at the shop getting fitted. I could feel the difference in power right away. The Zipps didn't hurt either.

blavelle's picture
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blavelle posted 36 weeks ago.

it all depends on how you ride it, it pangs me to see people on tri bikes but not riding them properly. For me riding in tri position only increased my speed a little but the amount it saved me on the run due to saved legs was highly notable.

to sum it up

bike times = increased around 1mph

overall times = around 10 minutes compared to old road bike

"now I only have good days and great days."