Bike porn

Ohhhh, thanks, i would love to see a diagram though.

You pedal the same way as normal, but the pedals aren't connected to each other (a bit like powercranks). But instead of turning the chain, it pulls the chain forwards, then snaps back like a rowing machine, as philjay said.

hummm, beg to differ.
cranks set to gallop? Look how long the crank arms are? At half stroke your rear foot would almost be at the rear axle.
I'm guessing is more like a 'step machine' motion.. ?? no?

Also i think you will find that the two chains are connected. Theres a pulley infront of the b/b shell. Presumably as one crank movestowards the rear of the bike it pulls the chain over the rear sprocket creating drive and also pulling the chain on the opp side back over the sprocket (freewheel) and bringing the crank/pedal back to the front of the bike.

hummm, beg to differ.
cranks set to gallop? Look how long the crank arms are? At half stroke your rear foot would almost be at the rear axle.
I'm guessing is more like a 'step machine' motion.. ?? no?

I was just guessing lol.

Yeah thinking about it they probably pull backwards then the pully pushes the pedal forwards. So you pedal the bottom third of the circle?

If you look at it the chaing is one long piece and as you push down on one foot it pulls the other side up.

Wahey, thanks,
has it got a name?

http://3.bp.blogspot.com/_PNgp5SyTu4A/SFIxA7FDt6I/AAAAAAAAAXE/6i1_sFKU7Ws/s1600/画像%2B001.jpg

sweet , i made me one as well.

another rat bike porn;

http://flickr.com/photos/mobiuscycle/sets/72157612577856421/

Sorry if these are old hat. Not seen them before myself.
Cog porn.

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gorgeous

very similar system to Miche

custom painted aerospoke is lovely! it has some issues obviously... the top tube is too short for starters

anyone any idea what these bars are? like the hammerhead style of them

talk to eyebrows on his continuing clearout thread...

nice bike lady ....

i love your two big........purple rims...

reeeeeeeeeeepost

another rat bike porn;

http://flickr.com/photos/mobiuscycle/sets/72157612577856421/

yep, good find ed.

it's all about the RBP

Sorry if these are old hat. Not seen them before myself.
Cog porn.

nice but just like miche the largest cog size is 18t...
$99.99 for the pictured set...

Probably a good one for your Tweed run

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wheelchair porn?

that's disgusting!!