Bradley wiggins - eliptical crank!

gtitim
gtitim Posts: 225
edited July 2009 in The bottom bracket
Sorry if this has come up before, but did anyone see Wiggo's eliptical crank in yesterdays TT? I didn't know such things even existed!

Does anyone know the benefits of these? I guess it helps smooth out the dead zones in the pedal range.

Comments

  • pottssteve
    pottssteve Posts: 4,069
    gtitim wrote: "Bradley wiggins - eliptical crank!"

    Is that slang for something?! :wink:
    Head Hands Heart Lungs Legs
  • gtitim
    gtitim Posts: 225
    lol, sorry I actually mean chainring not crank, which in some parts of the word, having an elliptical crank may well be slang for something, or even a reason to see the doctor!
  • Pokerface
    Pokerface Posts: 7,960
    The entire Cervelo team use eliptical chainrings (Q-Rings). The one Wiggins uses is just a bit more obvious.
  • gtitim
    gtitim Posts: 225
    Pokerface wrote:
    The entire Cervelo team use eliptical chainrings (Q-Rings). The one Wiggins uses is just a bit more obvious.

    ah right, thanks. Anyone know where you can buy these things?
  • ride_whenever
    ride_whenever Posts: 13,279
    old idea that comes round every few years, normally rotated a chunk.

    Shimano made the biopace rings in the later 80's early 90's if i remember correctly.
    Neeermad
    Carbon 456
    456 lefty
    Pompino
    White Inbred
  • gtitim
    gtitim Posts: 225
    Wiggins version was practically rectangular it was so exaggerated.
  • mattbass789
    mattbass789 Posts: 355
    my dad had the biopace rings on his old dawes bike from the late 80s, i read on the rotor qring site they reduce lactic acid and increase power output. i cant see how, but thats the claim theyre making.
    “If you worried about falling off the bike, you’d never get on.”

    @mattbeedham
  • spen666
    spen666 Posts: 17,709
    gtitim wrote:
    Sorry if this has come up before, but did anyone see Wiggo's eliptical crank in yesterdays TT? I didn't know such things even existed!

    Does anyone know the benefits of these? I guess it helps smooth out the dead zones in the pedal range.

    Is this the racing section now?
    Want to know the Spen666 behind the posts?
    Then read MY BLOG @ http://www.pebennett.com

    Twittering @spen_666
  • pottssteve
    pottssteve Posts: 4,069
    ride_whenever wrote:
    old idea that comes round every few years, normally rotated a chunk.

    Shimano made the biopace rings in the later 80's early 90's if i remember correctly.

    How can it come around if it's eliptical?! :lol:
    Head Hands Heart Lungs Legs
  • gtitim
    gtitim Posts: 225
    spen666 wrote:
    Is this the racing section now?

    Sheesh, easy tiger. Who's talking about racing? I'm just interested if anyone knows about non-round chain-rings.
  • gtitim
    gtitim Posts: 225
    pottssteve wrote:
    ride_whenever wrote:
    old idea that comes round every few years, normally rotated a chunk.

    Shimano made the biopace rings in the later 80's early 90's if i remember correctly.

    How can it come around if it's eliptical?! :lol:

    lol.
  • spen666
    spen666 Posts: 17,709
    gtitim wrote:
    spen666 wrote:
    Is this the racing section now?

    Sheesh, easy tiger. Who's talking about racing? I'm just interested if anyone knows about non-round chain-rings.

    Easy?

    What for asking a question?
    Cake Stop moved to commuting, so its not unreasonable to know if racing is moving to cake stop is it?

    I'll run my queries by you in future shall I to get your approval before I post them
    Want to know the Spen666 behind the posts?
    Then read MY BLOG @ http://www.pebennett.com

    Twittering @spen_666
  • balthazar
    balthazar Posts: 1,565
    gtitim wrote:
    Pokerface wrote:
    The entire Cervelo team use eliptical chainrings (Q-Rings). The one Wiggins uses is just a bit more obvious.

    ah right, thanks. Anyone know where you can buy these things?
    http://www.highpath.net/cycles/ovals/01.html

    http://www.highpath.net/cycles/eggs/02.html#prices
  • gtitim
    gtitim Posts: 225
    balthazar wrote:
    http://www.highpath.net/cycles/ovals/01.html

    http://www.highpath.net/cycles/eggs/02.html#prices

    Thanks very much.
  • gtitim
    gtitim Posts: 225
    might get one of these for my fixed wheel.
  • john-e-big-guns
    john-e-big-guns Posts: 489
    I have L shape cranks on my TT bike from the 80's......suposse to cut out the dead spot..... along with concealed cables..Modolo brakes.. Assos V rims... and Columbus Airo[Teardrop] tubing frame
    No Pain; No Gain;

    http://www.flickr.com/photos/john-e-big-guns/
  • Infamous
    Infamous Posts: 1,130
    gtitim wrote:
    might get one of these for my fixed wheel.
    haha was that a joke? The chain will fall off.

    It's a load of rubbish anyway, never been proven to improve power.
  • Ruari
    Ruari Posts: 217
    pottssteve wrote:
    ride_whenever wrote:
    old idea that comes round every few years, normally rotated a chunk.

    Shimano made the biopace rings in the later 80's early 90's if i remember correctly.

    How can it come around if it's eliptical?! :lol:
    That's why it only comes back in vogue every few years....!
    FCN 1
  • sloboy
    sloboy Posts: 1,139
    Sastre and his lads ride these:

    http://www.rotorbike.com/nueva/ingles/r ... act110.htm
  • Frank the tank
    Frank the tank Posts: 6,553
    Wiggo's TT performance was not as good as expected was it? So perhaps the eliptical chainring was not a succsses.
    Tail end Charlie

    The above post may contain traces of sarcasm or/and bullsh*t.
  • bikeboy123
    bikeboy123 Posts: 63
    i was there when he won this here's beaumont trophy ( one of the premier callenders in the north east not long before the tour )

    we were mooching around the race hq's and there he was with his wife and kids in a very flash bmw... we went over for some photo's and got him to sign some stuff ( he's a top bloke )

    i had a real good look at the rings on his bike and they are very radicly shapped, very much like a rectangle

    but he climbed up the ryals in the big ring!!! more than one time, so they must work...

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