Originally Posted by Cassadamius
No, it is as opposed to weight. The larger tubes weigh more. Cervelo has just mastered the ability to keep them light, so they make the Soloist. If the weight was equal, then most road bikes would be aero. And as far as cheaper and easier to design, check out Cervelo's R3 - squoval tubing (seemingly as complex if not more than the more standard tubes of the soloist) and frameset costs $2800.
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http://img.photobucket.com/albums/v1...landbike-1.jpg
Here is a pic of me warming up on my baby yesterday morning(pre race). With my disk on, and the 404 on the front, it is right around 20 lbs(estimated by using 20lb weight in other hand). The tech behind bike manufacturing is so much more complex then you would think. Take carbon fiber for example. The strench/weight/thickness required depends on the type of weave you use, how many layers, the type and amount of glue on each layer, the temperature it is baked at. Then you get into the shape of it. There is so much more to it then most think. If you look at most bikes now, the round tube is dead. They are all going for a weird box tupe, or an aero type(depending on what the manufacturers goal is) |
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^^^ Agreed... great pic! |
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Cervelos are so nice :D
If my Zipp2001 ever kicks the bucket (knock on wood) that is currently my choice of TT bike. |
Damn and I was happy when I picked up my Cannondale Ironman 800 on thursday...
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Why aren't you happy now? Their Ironman series is great... you should be happy (from what I've heard anyway).
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Originally Posted by Berns
The bike is fast... unfortunately, I'm not. :( At least I feel fast :D
http://www.specclub.com/bernie/berni...rnie_zipp1.JPG |
Originally Posted by Sprocket Man
Berns, those Scott DH handlebars are very cool. My wife (who was my girlfriend at the time) bought me a pair of those about 17 years ago when they first came out. I haven't seen anyone with those in well over 10 years. It's a shame they don't sell them anymore - they're very nice looking.
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What is it like using upside down brakes?
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Originally Posted by evanatorx
What is it like using upside down brakes?
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I don't have one. :( I just use my roadbike.
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Question: Why flip the stem upside down? Mine is already at a downward angle from back to front, is that not the most aero?
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Originally Posted by Jimborama
Question: Why flip the stem upside down? Mine is already at a downward angle from back to front, is that not the most aero?
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Here is my poor college student road bike / tri-bike:
http://pg.photos.yahoo.com/ph/fikret...e2.jpg&.src=ph Generic 7005 aluminum frame with a carbon fork, combination of Sora and Tiagra components, and a Forte aero bar. The frame is one size too big so the seat / handlebar ratio is not the best for me (as I said, money is tight and I got a great deal on this bike so I didn't mind it being a touch too big). I might flip the stem and see how that feels but so far it has been working OK. But the bike is also my daily commuter so flipping the stem might make it uncomfortable for everyday riding as this riding position works pretty well for dodging Atlanta traffic. Soon as grad school is over, I hope to build or purchase a bike with a properly-sized frame for me :) |
Old skewl baby..
http://www.secondhandsix.com/temp/ca...ra_tri_004.JPG It's an older Calfee that I bought for $500; it had some odd parts on it (giant upraised stem, drop bars, etc.) so it was cheap. A set of Vision base bars w/brakes ($70 at www.chucksbikes.com), a short stem, and a set of $200 Rev-x wheels later, and it's rockin' and rollin'. :) |
Kendall,
Your bike looks sweet! Where did you get SpinerG's for 200 bucks? Jay |
I scrounge the classifieds here, on www.slowtwitch.com, and I look on Ebay. These came from a guy on Slowtwitch.
That's the cool thing about 650 wheels; lots of people are moving away from them and you can pick up deals if you are patient. I just bought a rear 650c wheel with a Powertap hub for this bike for $150. :D I need another install kit and then I'll be able to use my PT Pro on both the road bike and the tri bike. |
About the aero frames vs not so aero..
I think the time trial bikes are designed that way because the 'aero position' is really only effective in speeds above about 25 mph. On a TDF climbing leg, you're probably not doing that a lot of the time so it becomes less important. Then the weight becomes more of an issue as well as things breaking. However, on a TT you may be doing 30-35 the majority of the race. **I think** |
So in other words... my bike is useless because I'm slow! Hahaha!!! (j/k)
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here is a pic mine. In a sea of red, black and silver in the transition area, it is a lot easier to see her.
http://i80.photobucket.com/albums/j1...Picture009.jpg |
Originally Posted by CIVEbike
About the aero frames vs not so aero..
I think the time trial bikes are designed that way because the 'aero position' is really only effective in speeds above about 25 mph. On a TDF climbing leg, you're probably not doing that a lot of the time so it becomes less important. Then the weight becomes more of an issue as well as things breaking. However, on a TT you may be doing 30-35 the majority of the race. **I think** Though you are correct that they are designed for the aero position and that the aero position has it time and place, mostly triathlons and TTs. 30-35??? sounds a bit fast for any distance to me. |
Originally Posted by Triguy
This is not quite right. Most windtunnel testing suggests that anytime you are going above 14 mph you should be in your aero position because the decreased wind resistance is significant. Plus, your average ironman pro is more in the 22.5mph-25mph range and I guarantee the aero position helps them a bit.
Though you are correct that they are designed for the aero position and that the aero position has it time and place, mostly triathlons and TTs. 30-35??? sounds a bit fast for any distance to me. |
Sharp bike jrennie! Very nice in the yellow.
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Finally got pix of the tri bike. It's my former commuter, rain trainer, and magic gear fixie: an REI Novara Trionfo. I put on Profile bullhorns and Syntace aerobars. I kept the Ultegra brifters and just mounted them on the bullhorns. Looks a little wonky but works just fine. Supercomfy and well-broken-in Selle Italia Flite saddle on a Profile forward seatpost to replicate that tri-bike geometry. Rolf wheels.
http://i2.photobucket.com/albums/y18...ugust06017.jpg http://i2.photobucket.com/albums/y18...ugust06018.jpg http://i2.photobucket.com/albums/y18...ugust06020.jpg |
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