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• #49652
that jackson tandem is really weird. anyone think of a logical reason to have the chainset at the front, I can't.
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• #49653
that's fucking awesome.
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• #49654
anyone think of a logical reason to have the chainset at the front, I can't.
http://www.bikexprt.com/bicycle/tancrank.htm
Front crossover drive
A major, but little-appreciated advantage of crossover drive, is that you can use front drive. Front drive makes a lot of sense on a road tandem. In front drive, the drive chainwheels are on the front crankset, as shown here:
Front drive has some important advantages:
You can use any chainwheel-sprocket combination without chain angle problems, since the long front chain reduces the angles.
The drive chain lasts longer, because the wear is spread among more links, and so the sprockets also last longer.
Both riders can see and hear the front derailleur.
Stresses on the bottom brackets and the frame are lower than with rear crossover drive.
You can switch easily and quickly from the conventional rear crankset to a kidback by using a chain that runs diagonally from the kidback down to the front crankset, and lashing the conventional rear crankset to the frame so it does not turn. You do not have to remove the rear pedals when switching to the kidback.
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• #49655
why dont you and dancing james go out on your bicycles and throw yourselves into the path of a refuge lorry, I bet that would make a right mess seeing the size of your two heads being smudged all over the concrete
you utterly vacuous cretin, what the fuck is a refuge lorry?
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• #49656
i believe its what they transport the victims of domestic violence in
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• #49657
I think there's a e missing
1 Attachment
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• #49658
Or is it a lorry you take refuge behind when the shit hits the fan
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• #49659
If you look at the BJ tandem, you can see what looks like a braze on for a front mech on the rear ST....
maybe it is not built as bob intended?
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• #49660
The more obvious clue that it was built with a more conventional set up in mind is the dimpled chainstay to provide chainring clearance.
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• #49661
Do they do tandem CX?
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• #49662
Do they do tandem CX?
Yes
3 Attachments
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• #49663
you utterly vacuous cretin, what the fuck is a refuge lorry?
I think he wants harm to come to you and and an articulated wagon of illegal immigrants.
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• #49664
The more obvious clue
I guess it depends who's looking....
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• #49665
That^^^ is in fact single-speed, tandem, cyclocross, racing.
A tad niche.
Looks like great fun though.
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• #49667
uggg i hate rasta paint jobs
+1
Its also the only way you can make a King headset look like tat.
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• #49668
That^^^ is in fact single-speed, tandem, cyclocross, racing.
A tad niche.
Looks like great fun though.
Looks epic.
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• #49669
Tandem cross, just when you thought cycling couldn't become more stupid.
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• #49670
Tandem singlespeed cross, just when you thought cycling couldn't become more stupid.
I agree.
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• #49671
How's your tandem build coming along by the way, Rob?
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• #49672
this isn't ?
http://static.lfgss.com/attachments/41147d1308181603-100_2019.jpg
If you look. Only the guy at the front has gears ;)
OK. Just the main pic is SSTCX.
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• #49673
How's your tandem build coming along by the way, Rob?
You mean the MANDEM?
Collecting it in two weeks, then I need to see what's with the what now with the drivetrain
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• #49674
thats a BIKE PORN :)
http://www.thefixfixfix.com/fix/index.php/galleries/
maybe not porn but definitely SEXY -
• #49675
Caliper not straight
The chainstay isn't abnormally short though. They've just shortened the wheelbase with a curved seat tube.