Bike porn

It surely just moves the dead spot around the rotation by 90 degrees.
The most efficient method on a tandem would be to run the two cranks out of phase so that as a whole, the bike would always be under power and there would not be a 'double dead spot' as both riders reach halfway through a rotation.
Obviously this causes other problems with synchronicity between riders and the lateral movement of the bike itself is stopped and this in real life, would have more of an adverse effect than dead spots but its interesting to think about.

Nope, they simply added a bit more metal, weight and unnecessary flex. Tester is bound to be along soon to concisely explain the science.

It does nothing.

The actual lever still runs from the centre of the pedal to the centre of the crank. The shape of the arm makes no difference.

the most remarkable part about those cranks is their existence.

And the fact that more than one set was made!

They sold a lots of Reliant Robin doesn't mean it work.

At the time, you could drive a reliant robin with only a motorcycle license which made them popular.

^^^^I dont understand the kalavinkas with super long dropouts when half of it is unusable.

^^^^I dont understand the kalavinkas with super long dropouts when half of it is unusable.

Larger bonding surface to the fibers?
Bigger is better?
More zen?

it's for changing gear ratios at the track

because its really really practical ^^^

I know what its for in theory but all the photos I've seen of them have the wheel in the last 1/2 of the dropout with the wheel pretty much touching the seattube.

it's for changing gear ratios at the track

It surely just moves the dead spot around the rotation by 90 degrees.

100% radial ? 75 % ? WDF ?

Velo Orange makes some nice stuff

Red always looks shit on wheels imo.

^^ That was a Velo Orange prototype made by a local frame builder, the retail version is nowhere as nice sadly.

100% radial ? 75 % ? WDF ?

Ooooof, best bike I've seen in ages!
Don't suppose there's any more info?

Ian Cammish, early 1980s. There was probably coverage in the comic as he was a big star and they used to cover domestic time trials; tell that to kids today and they won't believe you :-)

feelin those adidas shoes

Enjoy http://www.timetriallingforum.co.uk/index.php?showtopic=15538&st=4980