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Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 3:27 am
by Mike V

Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 5:49 am
by Werdna
So cool, thanks for sharing!

Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 5:49 am
by Weenie

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Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 11:22 am
by ave
That is amazing!! What a man!!
Single speed as far as I can see. (?)

But surely the bike needs an aero cover if he really want the land speed record.
If he goes fast enough, he can make us of the RAM to assist his breathing. :D

Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 12:06 pm
by mrfish
Obviously another smart design which nobody else thought of. Not sure about the lack of gears, but I guess the push-pull action gives a bit more flexibility than a typical bike pedalling action.

There is a side-on photo in this month's Tour magazine. According to the article my understanding was that he thinks the bike could break the record without a fairing. I think that's unlikely, but I think Obree stands a good chance with his innovations, legs and lungs plus a fairing.

Let's also hope it uses some lucky washing machine parts!

Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 12:09 pm
by Plugger14
Wouldn't want to come to grief on that at speed.....

Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 1:13 pm
by CarpetFibre
I read that he does have a carbon fairing for it too. What an awesome project - I hope he gets what he set out to achieve!

Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 2:06 pm
by CarlosFerreiro
At those speeds a super low CdA fairing is essential.
The power requirements to break the record are not crazy numbers; producing them in the required position, inside a tight, hot shell while staying upright is likely a bit harder.

Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 2:22 pm
by stella-azzurra
Nice! Upper body strength is a requirement.
The position is optimal for flat roads.
Maybe a fender on the front wheel when training in the streets?

The weight is heavy. Anyone one know the weight.
What is the weight limit for the bike to break a hour record.

Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 3:56 pm
by CarlosFerreiro
Run under IHPVA rules
http://www.ihpva.org/home/

Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 4:02 pm
by weeshuggy
I think i read a whilst ago that he has 3 gears on it i might be wrong though it could just be the one. I do know however he will be pushing the equivalent of a 298 inch gear. :shock:

Also love the fact that he is still wearing his club kit XD Actually i passed him a few weeks ago on a run, he didn't have his special bike with him though.

Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 4:03 pm
by NGMN
mrfish wrote:Obviously another smart design which nobody else thought of. Not sure about the lack of gears, but I guess the push-pull action gives a bit more flexibility than a typical bike pedalling action.


I'm a big Graeme fan but this is definitely not a purely original idea:

http://www.h-zontal.com/pagesgb/presentation.html" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;

http://www.bentrideronline.com/?p=7032" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false; -

"These were largely tossed out by the HPV racing community in the early 80′s."

Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 4:21 pm
by HammerTime2
How much power can you (or actually Graham) crank out prone vs. recumbent?

Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 4:53 pm
by stella-azzurra
The next version of this will also involve the arms!

Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 5:32 pm
by tinchy
wouldnt fancy having my nuts so close to a rotating chainring

Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 5:32 pm
by Weenie

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Re: Graham Obree Speed Record Bike

Posted: Wed Sep 05, 2012 5:37 pm
by stella-azzurra
If you notice there is a plate there. :lol: