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alevand
human power expert

USA
2929 Posts

Posted - 12/31/2013 :  05:22:06  Show Profile  Visit alevand's Homepage  Reply with Quote
First bicycle ridden to the south pole is a recumbent trike!

http://www.gizmag.com/south-pole-fat-trike/30245/



C:
Tony Levand

Edited by - alevand on 12/31/2013 09:14:44

PUGZCAT
recumbent enthusiast

Canada
459 Posts

Posted - 12/31/2013 :  14:34:45  Show Profile  Reply with Quote
That's impressive!
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dave
recumbent enthusiast

140 Posts

Posted - 01/18/2014 :  12:34:18  Show Profile  Reply with Quote
I bet she has the gumption to be a great long distance bent racer
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Larry Lem
human power expert

South Sandwich Islands
2524 Posts

Posted - 01/19/2014 :  10:48:57  Show Profile  Reply with Quote
She already is.

Larry Lem
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PUGZCAT
recumbent enthusiast

Canada
459 Posts

Posted - 01/20/2014 :  14:43:35  Show Profile  Reply with Quote
She completed the Siberia Black Ice Race last spring.
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warren
human power expert

USA
6112 Posts

Posted - 01/26/2014 :  12:02:50  Show Profile  Visit warren's Homepage  Reply with Quote
A nice documentary on Maria's trip to the South pole:
http://www.itv.com/news/wales/story/2014-01-20/world-first-cycle-to-the-south-pole/#missed-tonights-wales-this-week-special-dont-worry-catch-up-here_314719
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alevand
human power expert

USA
2929 Posts

Posted - 01/28/2014 :  05:47:27  Show Profile  Visit alevand's Homepage  Reply with Quote
That is amazing. I would have given up with that much pain. I don't think I would have used oval chain rings, for the same cadence you have to push harder on the pedal stroke, which is bad for the knees. Bigger tires would have been helpful on the plateau. I rode something like this at one of the races:


C:
Tony Levand

Edited by - alevand on 01/28/2014 05:48:23
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purplepeopledesign
recumbent guru

Canada
685 Posts

Posted - 01/28/2014 :  08:21:26  Show Profile  Reply with Quote
Wow! Does it float well enough to fish the lake?

:)ensen.

Those who claim to be making history are often the same ones repeating it.

Video of my trike
http://www.youtube.com/watch?v=MdSLRD_2vzc
Photos of my trike
http://www.flickr.com/photos/purplepeople/
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mhelander
recumbent enthusiast

Finland
383 Posts

Posted - 01/29/2014 :  02:43:35  Show Profile  Reply with Quote
Most likely will be little hard to balance when in the lake. It seems to be 2-wheeler.

But it'll get you to distant lake over swamps, mud and all.. If not that soft terrain typical fat bike will do the same as typical here in Finland.

Cheers,
-Mika

Diy bents: Full-suspended off-roader @ 2012, Vendetta clone @ 2012
Commerials: MetaPhysic 700c @ 2011, M5 CrMo Lowracer @ 2010
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alevand
human power expert

USA
2929 Posts

Posted - 01/29/2014 :  04:58:00  Show Profile  Visit alevand's Homepage  Reply with Quote
It's mainly for sand.

C:
Tony Levand
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Speedy
recumbent guru

USA
882 Posts

Posted - 01/29/2014 :  09:13:03  Show Profile  Reply with Quote
Tony
I made a delta trike with tires like yours
2 drive tires, one non drive for steering
while it works fine on the beach it absolutely will not climb a sand dune ... not due to low enough gearing, it has a 6" low
have tried different tire pressures, from nothing to double the recommended
tires dig a hole
will yours climb in soft sand?

quote:
Originally posted by alevand

It's mainly for sand.

C:
Tony Levand

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Speedbiker
human power expert

USA
3754 Posts

Posted - 01/29/2014 :  17:31:56  Show Profile  Reply with Quote
How about tracks? Remember that snow bike conversion with the track and ski.
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alevand
human power expert

USA
2929 Posts

Posted - 01/30/2014 :  05:12:22  Show Profile  Visit alevand's Homepage  Reply with Quote
Thom,

It's not my bike, but the guy that built it calls it a sand bike:

http://solidsmack.com/design/fat-tire-bicycle-design-no-3d-cad-model/

You probably need larger diameter tires and smooth tread.

I saw a video some time ago where the guy had semi truck inner tubes and was floating in water. He wrapped leather around the circumference to prevent punctures. Simular to this:



quote:
The Fat Tire Sand Bike designed by Mike Scarani could be the sand-spittin’ scrawler you’ve been looking for. He designed it using no 3D CAD of any sort, but his knowledge based in mountain biking, architecture and a few CAD applications, gave him just enough passion to push the limits of drive train dominance. Here’s the breakdown.

Edited by - alevand on 01/30/2014 05:31:32
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