Can anyone build a rear wheel like this?
06-02-07, 09:49 PM
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Can anyone build a rear wheel like this?
https://www.ktrakcycle.com/
Anybody heard of anything like this? Better yet can find a way to make one?
Video: https://youtube.com/watch?v=IvnU64S2Pho
06-03-07, 06:08 AM
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Nobody ever heard of that. Especially the people that made them and posted the pictures.
06-03-07, 09:49 AM
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Originally Posted by Bill Kapaun
Nobody ever heard of that. Especially the people that made them and posted the pictures.
also the video makes the idea pretty plausible.
06-03-07, 10:50 AM
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Strange that on the page for the product, if you watch the morph from MTB to snowbike thingee, the bike does not have a rear disc brake rotor on the regular wheel, but has one one the snowmobile wheel.
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06-03-07, 11:27 AM
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Originally Posted by h2o_polo_boi
apparently, the first production models will be released later in the year....according to their website.
06-03-07, 12:18 PM
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I'm wondering about the gears, from the FAQ:
Does this mean you need special shifters as well? A wider chain? Chainrings?
Or does it mean that the cassette has either 8 or 9-speed spacing (but not both, 'cuz they're different) but is just narrower, so only with space for six sprockets? Probably the latter option.
The Ktrak comes with 6-speed cassette of gears with the same spacing as an 8- or 9-speed cassette.
Or does it mean that the cassette has either 8 or 9-speed spacing (but not both, 'cuz they're different) but is just narrower, so only with space for six sprockets? Probably the latter option.
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"c" is not a unit that measures tire width
"c" is not a unit that measures tire width
06-03-07, 12:21 PM
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That was in Popular Science last year, I think. Seems like a cool idea for folks who live where snow stays on the ground for more than one day.
I wonder if it's good for uphill, too...
I wonder if it's good for uphill, too...
06-03-07, 02:04 PM
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Well... On flat ground, the force required to go up loose sand is roughly the equivalent of the force required to go up a ~15-20% grade. Since I figure snow would be similar, it'd probably be like climbing an average of a 30% grade on your bike, assuming a 10-15% grade and that snow behaves like loose sand. Helluva workout...
06-03-07, 02:33 PM
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Yeah, it looks like it's good for going downhill. Maybe because of the ski in the front. 
Skis for snowy downhills, pshhh.
Skis for snowy downhills, pshhh.
06-03-07, 02:36 PM
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I wonder though, can one build a rear wheel like that?
I have a spare rear wheel sitting around for my road bike. What i probably need are special tires that a flexible track belt can attach to. Then attach a smaller wheel to the back with bars via hub. I don't know. The video sure looks fun!
I have a spare rear wheel sitting around for my road bike. What i probably need are special tires that a flexible track belt can attach to. Then attach a smaller wheel to the back with bars via hub. I don't know. The video sure looks fun!
06-03-07, 02:41 PM
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Originally Posted by FlatFender
hmm... my snow bike just has a 46mm Trials rim and a 2.6" tire on the back. works great in the snow.
Yea I was thinking it would be easier to just get tires with huge knobbies...now the front ski seems a bit harder to make lol
