180mm cranks

You can use whatever length cranks you want as you apparently get used to whatever you have. Mike Burrows did a few experiments with very short cranks and low gears as opposed to long cranks and a high gears. (the short cranks allow higher rpm which gives same speed as lower rpm long crank with higher gear)
Only one man's opinion but he reckons as long as you don't change between bikes of a 145mm cranks and a 175mm it isn't noticeable after a few days.

Thread from the dead. What fun!

tall man on a tall bike with high BB would be very tall indeed

I ride 185mm on my singlespeed MTB and im only 182cm, it makes my tread much more powerfull when standing up in the pedals.. i have tried a 175mm too, and there is a big big difference!

Jacques Anquetil 175mm
Lance Armstrong 175mm
Magnus Backstedt 177.5mm
Ivan Basso 172.5mm
Paulo Bettini 170mm
Chris Boardman 170mm
Tom Boonen 177.5mm
Santiago Botero 172.5mm
Fabian Cancellara 177.5mm
Angel Casero 175mm
Mark Cavendish 170mm
Mario Cipollini 172.5mm
Alberto Contador 172.5mm
Nicole Cooke 170mm
Fausto Coppi 171mm
Danilo Di Luca 172.5mm
Malcolm Elliott 172.5mm
Cadel Evans 172.5mm
Stefano Garzelli 172.5mm
Tyler Hamilton 172.5mm
Bernard Hinault 172.5mm
Thor Hushovd 175mm
Miguel Indurian 180mm (190mm for second Hour record!)
Laurent Jalabert 172.5mm
Sean Kelly 172.5mm
Kim Kirchen 172.5mm
Levi Leipheimer 172.5mm
Greg Lemond 175mm
Brad McGee 175mm
Robbie McEwen 170mm
Eddy Merckx 175mm
David Millar 175mm
Francesco Moser 175mm
Marty Northstein 167.5mm in Keirin (170mm in kilo)
Scott Nydam 175mm
Graham Obree 175mm
Marco Pantani 170mm (180mm in mountains)
Alessandro Petacchi 175mm
Yaroslav Popovych 172.5mm
David Rebellin 172.5mm
Roger Riviere 175mm
Jean Robic 170mm
Tony Rominger 172.5mm (175mm for Hour record)
Carlos Sastre 170mm
Oscar Sevilla 175mm
Andy Schleck 172.5mm
Frank Schleck 172.5mm
Ondrej Sosenka 190mm
Jan Ullrich 177.5mm
Christian Vande Velde 175mm
Rik Verbrugghe 175mm
Jens Voigt 177.5mm
Bradley Wiggins 175mm
Erik Zabel 172.5mm
David Zabriskie 175mm
Alex Zulle 175mm (180mm in mountains)

None of whom are currently riding fixed, dodging pedestrians riding from work to the pub in London..

What's your point?

I ride 180mm cranks on my road bike but I'm really tall and it was for hilly sportives I got the long cranks. Use 165mm on my track bike and wouldn't want to use any longer

Nik Bowdler, current BBAR champ uses 165mm cranks pushing THAT 77T chainring..

Do my eyes deceive me or is that 650c front and rear though?
Or is he a monster?

He's 5'11". Taller than me and I ride 172.5mm.

http://www.cyclingweekly.co.uk/news/latest/345741/bowdler-makes-his-mark-on-the-bbar.html

Do my eyes deceive me or is that 650c front and rear though?
Or is he a monster?
Don't think so, as that's a standard Felt TT frame which presumably suits 700c wheels. Still a monster to turn that gear though.

Don't think so, as that's a standard Felt TT frame which presumably suits 700c wheels. Still a monster to turn that gear though.

If they are 700c then he is more than 5 11 surely, as he looks huge on that bike?