Advertise on Bikeforums.net



User Tag List

Page 2 of 29 FirstFirst 123412 ... LastLast
Results 26 to 50 of 722
  1. #26
    Senior Member
    Join Date
    Nov 2004
    Location
    The Land of Oversized Mice and Anteaters
    Posts
    535
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by chephy
    I see. But how come this is only specific to Tri bikes? Or is it? Do other bikes made for racing have the same feature?
    It's mainly for Time Trial/Tri bikes, as the design focus is more on aeordynamics than anything else.

  2. #27
    Two H's!!! TWO!!!!! chephy's Avatar
    Join Date
    Jul 2005
    Location
    Toronto, ON
    Posts
    4,165
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Hawkear
    It's mainly for Time Trial/Tri bikes, as the design focus is more on aeordynamics than anything else.
    Oh, I see, as opposed to, say, weight. Thanks for the clarifications.

  3. #28
    Senior Member
    Join Date
    Dec 2005
    Location
    Reisterstown, MD
    Posts
    3,181
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by chephy
    Oh, I see, as opposed to, say, weight. Thanks for the clarifications.

    Not at all. Tri/TT bikes are plenty light. It is not oppossed to anything necessarily. My guess is that traditional round'ish tubes are just cheaper and easier to design etc. Also, the rounder tubes are likely better "overall". Most standard type racing bikes are designed for a variety of riding types, uphill grinds, windy downhill bombs, etc.

    Time trials and Tri's are often more long stretches, straighter etc.

    Look at the bikes from Cervelo. A Road racing bike with aero tubing

    http://www.cervelo.com/bikes.aspx?bike=SLC2006

    Of course I am neither an expert at bike design or racing, so this is just my best guess.

    -D

  4. #29
    Extra Junior Member Cassadamius's Avatar
    Join Date
    Dec 2005
    Location
    Lakeland, FL
    My Bikes
    '05 LeMond Buenos Aires
    Posts
    189
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    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.
    A dollar for some fake hair goes a long way

    2005 LeMond Buenos Aires (deceased)
    2007 Ridley Excalibur

  5. #30
    Senior Member Berns's Avatar
    Join Date
    Jul 2005
    Location
    Beaverton, Oregon
    My Bikes
    2008 Quintana Roo LuceroLite; 1993 Zipp 2001, 1998 Quintana Roo Private Reserve Kilo; Kona
    Posts
    159
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The bike is fast... unfortunately, I'm not. At least I feel fast

    Last edited by Berns; 08-08-09 at 02:43 PM.

  6. #31
    Senior Member Talewinds's Avatar
    Join Date
    Oct 2005
    My Bikes
    (2) 2004 Trek 1500, Team Colors:2004 Cannondale Ironman w/ Renn and Zipp: 2005 Kestrel Talon SL: 2001 GT Agressor: 2001 Schwinn Moab: 2001 Specialized S-Works M4 Festina Team Bike: 2002 Pinarello Prince: 1980 Schwinn Voyageur 11.8
    Posts
    1,154
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote 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.
    That idea USED to be true. The modern tri bikes are every bit as light as their road bike cousins. Prodir's TT bike in the TDF hit the UCI weight minimum. My Kestrel tri bike is the lightest thing in my stable.

  7. #32
    I get high on lactic acid ^*^BATMAN^*^'s Avatar
    Join Date
    May 2005
    Location
    Ontario, Canada
    My Bikes
    2003 Cervelo P3/2003 Trek 2000/2005 Norco EXC 2.0ht
    Posts
    725
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    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)
    Road Bike- 2003 Trek 2000(out of service, rear triangle bent, looking for replacment)
    Triathlon/TT- 2003 Cervelo P3(also looking to upgrade to the P3C)
    MTB- 2006 Rocky Mountain Element Team
    Cats don't like riding on a bicycle......no matter how much duct tape you use.

  8. #33
    Member
    Join Date
    Oct 2004
    Location
    London, Ontario
    My Bikes
    Cervelo Soloist
    Posts
    45
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

  9. #34
    Flatman RoadToad's Avatar
    Join Date
    Jun 2004
    Location
    Texas
    My Bikes
    Giant TCR2
    Posts
    915
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Ex-rower
    What a great photo!
    BRING THE HEAT

  10. #35
    Senior Member Berns's Avatar
    Join Date
    Jul 2005
    Location
    Beaverton, Oregon
    My Bikes
    2008 Quintana Roo LuceroLite; 1993 Zipp 2001, 1998 Quintana Roo Private Reserve Kilo; Kona
    Posts
    159
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Ex-rower

    ^^^ Agreed... great pic!

  11. #36
    Senior Member
    Join Date
    Dec 2005
    Location
    O'Fallon, MO
    My Bikes
    '93 Raleigh Technium Olympian, 2006 Cervelo Dual
    Posts
    229
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

  12. #37
    Member
    Join Date
    Oct 2005
    Posts
    46
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

  13. #38
    Senior Member Berns's Avatar
    Join Date
    Jul 2005
    Location
    Beaverton, Oregon
    My Bikes
    2008 Quintana Roo LuceroLite; 1993 Zipp 2001, 1998 Quintana Roo Private Reserve Kilo; Kona
    Posts
    159
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Cervelos are so nice

    If my Zipp2001 ever kicks the bucket (knock on wood) that is currently my choice of TT bike.

  14. #39
    Go big or go home Jstyle's Avatar
    Join Date
    Sep 2004
    Location
    Gainesville, VA
    My Bikes
    Cannondale Ironman 800
    Posts
    269
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Damn and I was happy when I picked up my Cannondale Ironman 800 on thursday...

  15. #40
    Senior Member Berns's Avatar
    Join Date
    Jul 2005
    Location
    Beaverton, Oregon
    My Bikes
    2008 Quintana Roo LuceroLite; 1993 Zipp 2001, 1998 Quintana Roo Private Reserve Kilo; Kona
    Posts
    159
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Why aren't you happy now? Their Ironman series is great... you should be happy (from what I've heard anyway).

  16. #41
    Prefers Aluminum Sprocket Man's Avatar
    Join Date
    Feb 2005
    Location
    Honolulu
    My Bikes
    Wife: Trek 5200, C'dale Rush Feminine, Vitus 979 Me: Felt S25, Cervelo Soloist, C'dale Killer V500, Miyata Pro (fixie)
    Posts
    2,671
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Berns
    The bike is fast... unfortunately, I'm not. At least I feel fast

    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.

  17. #42
    Senior Member Berns's Avatar
    Join Date
    Jul 2005
    Location
    Beaverton, Oregon
    My Bikes
    2008 Quintana Roo LuceroLite; 1993 Zipp 2001, 1998 Quintana Roo Private Reserve Kilo; Kona
    Posts
    159
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote 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.
    Thanks! I use to have another set around but I think I threw them away. I'm regretting it now. Problem is that it's very difficult to find replacement elbow rests for them. Fortunately there's a place in Washington that sells some really nice replacement pads though. I've been very happy with them and they seem to be more stable than when my hands where apart. I think they they were called the "extreme" aerobars though. I thought the DH had the deeper drops and had a bridge at the top. I had those too before. I didn't like them because the curve at the bottom of the drops made my hands hurt. In any case. Thanks again for the compliment.

  18. #43
    Future= Your Boss evanatorx's Avatar
    Join Date
    Jun 2006
    Location
    Canada!
    My Bikes
    Opus Vivace, Kona Fire Mountain
    Posts
    169
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    What is it like using upside down brakes?

  19. #44
    Member
    Join Date
    Mar 2006
    Location
    Calgary, AB
    My Bikes
    Cervelo P2SL, Motobecane fixed conversion
    Posts
    44
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

  20. #45
    Senior Member Berns's Avatar
    Join Date
    Jul 2005
    Location
    Beaverton, Oregon
    My Bikes
    2008 Quintana Roo LuceroLite; 1993 Zipp 2001, 1998 Quintana Roo Private Reserve Kilo; Kona
    Posts
    159
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by evanatorx
    What is it like using upside down brakes?
    It's a little strange and takes a little getting use to, but other than that it's nothing drastic.

  21. #46
    Senior Member Berns's Avatar
    Join Date
    Jul 2005
    Location
    Beaverton, Oregon
    My Bikes
    2008 Quintana Roo LuceroLite; 1993 Zipp 2001, 1998 Quintana Roo Private Reserve Kilo; Kona
    Posts
    159
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by P2SL Marc
    Nice work!

  22. #47
    Twincities MN kuan's Avatar
    Join Date
    May 2005
    Location
    Salsa, Cannondale, Surly.
    Posts
    2,527
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I don't have one. I just use my roadbike.

  23. #48
    Junior Member
    Join Date
    Apr 2006
    Posts
    15
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Question: Why flip the stem upside down? Mine is already at a downward angle from back to front, is that not the most aero?

  24. #49
    Senior Member Berns's Avatar
    Join Date
    Jul 2005
    Location
    Beaverton, Oregon
    My Bikes
    2008 Quintana Roo LuceroLite; 1993 Zipp 2001, 1998 Quintana Roo Private Reserve Kilo; Kona
    Posts
    159
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote 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?
    I think that this is one of those "case by case" instances. Meaning the bike may be more aero, but are 'you' more aero? This goes back to days when time-trialist used to think that if the bike was more aerodynamic then you must be fast. Now that philosophy has changed to state that the bike should be aerodynamic but it should also make the rider aerodynamic. Having an upside-down stem may put the rider in a more aero position as well as a more comfortable position. 'Cause lets face it, if you're not comfortable (position-wise) then you're not going to go fast. Also bike geometry and sizing can also play a part in the layout of the stem.

  25. #50
    Senior Member fa63's Avatar
    Join Date
    Jun 2006
    Location
    Atlanta, GA
    My Bikes
    Zanconato Road, Seven Elium
    Posts
    1,401
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Here is my poor college student road bike / tri-bike:



    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

Page 2 of 29 FirstFirst 123412 ... LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •