Aerodynamics / Aerodynamic Cost / Aero parts

Posted on
Page
of 102
First Prev
/ 102
Next
  • Quite the sexy photo

  • Hmmm, frameset coming in at almost double what they had hoped for:

    https://www.cyclist.co.uk/news/7526/hope­-team-gb-track-bike-available-now-starti­ng-at-15550

    Still significantly cheaper than a UKSI though and are actually available to buy!

  • Coming soon to an Alan Sugar near you....

  • I thought they said at the launch they were expecting ~£15000?

  • I thought they said at the launch they were expecting ~£15000?

    The speculation was of £15k complete. A full build is actually going to be closer to £30k

  • 2-3% at TP power is going to be roughly around 15-20w isn't it? Any idea what that time saving that might be?

  • 2-3%

    ..of what? If it's 3% of frame drag, that's about 0.1% of total drag. Also no baseline specified; it's easy to find 3% if your baseline is a Pre Cursa 🙂

  • We’ve considered the design as if the rider and bike are a single unit.

    Guessing it's based of the T5GB + rider as that is likely to be the data BC has tested and the comparison they're most interested in.
    Just interested in what kind of time saving a theoretical 15-20w saving would get you over 4km though really.

  • Just interested in what kind of time saving a theoretical 15-20w saving would get you over 4km

    With 62km.h-1 as your baseline, only a couple of seconds

  • Appreciated, thanks @mdcc_tester.
    Not quite enough to have taken the gold off Australia at the last world championships then...

  • GB performance in world champs is meaningless, they don't give a fuck about them.

  • True, only the Ineos final interview, Olly whatsit? Got interlocking rings logo.

  • Yeah, that's what they say when they don't win. It's bollocks though, because UK Sport do allocate funding to athletes for World Champs so there is definite incentive to perform well at them. You're just not as good. :)

  • I have got my self wondering. The last tt bike I had I never liked one reason was on the extensions I could jot get to the brakes easily.

    So if I had a single speed or fixed gear tt bike I could mount brakes lever on the extensions. Is there anyway I can make sure a crazy contraption work with essentially 4 brake levers.

    Is fixed or single speed really quicker. I could just test it out on a track bike I have. Rode fixed again and I was surprised how easy it was.

  • Can the planet x framset be used as a fixed gear or single speed I.e are the dropouts long enough.

  • The last tt bike I had I never liked one reason was on the extensions I could jot get to the brakes easily

    Just bin the extensions and enter the road bike class where available, or compete on a road bike against people on spaceships for extra cool points

    if I had a single speed or fixed gear tt bike I could mount brakes lever on the extensions. Is there anyway I can make sure a crazy contraption work with essentially 4 brake levers.

    You could shim some crosstops onto the extensions and it wouldn't interfere with gear levers plugged in to the ends, so SS/fixed is not necessary. You would probably also have so much drag from all the cables flapping around that brakes would be moot 🙂

    Is fixed or single speed really quicker

    Yes, on the days when you managed to choose a gear which was right all the way round. Most people who have been on fixed for a decade or more can remember that one day.

  • I use a road bike for TT's now well not now it late and theres no TT's now. Long winter evenings and my mind wanders....

  • Jtek aerobrake lever fits onto the extensions.

  • Jtek

    Yeah, but £160 for two levers and two doublers, compared with <£10 for a pair of ebay crosstops which will be sufficient to demonstrate to @cycleclinic that putting the brakes on the tribar extensions isn't the game-changing idea he thinks it will be 🙂

  • Besides, the more annoying it is to brake, the less you’ll do it, and the faster you’ll go?

  • Less outlandish than the Hope bike, I know we'll see a good few Look T20 at local track races in teh next few years:

    https://www.lookcycle.com/fr-en/products­/bikes/track-bikes/t20-speed-version-fra­meset

  • Post a reply
    • Bold
    • Italics
    • Link
    • Image
    • List
    • Quote
    • code
    • Preview
About

Aerodynamics / Aerodynamic Cost / Aero parts

Posted by Avatar for hippy @hippy

Actions