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#1
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Recumbent trike-DF tandem
I've been contemplating building/buying a tandem for my wife and I, but
think she might be better served by a recumbent trike, while I still prefer the standard diamond-framed upright bike. The Haas Pino http://hasebikes.com/96-1-Tandem-Pino-Tour.html looks interesting, but also rather pricey. This home-made hybrid http://www.gizmag.com/tandem-trike-for-brain-injury-therapy/18775/ looks to be almost exactly what I'm looking for, except I think that not being able to tilt the upright portion of the bike might lead to stability problems in corners. Finally, I noticed that the Greenspeed Anura http://www.greenspeed.com.au/anura.html has an optional adapter http://www.greenspeed.com.au/anura/Tandem.Coupling2400.jpg that allows you to link two together to make a tandem. I was wondering whether I could just take the front wheel off my regular touring bike, clamp it onto the adapter and (differing axle heights neglected) build a tandem that way. A friend of mine mentioned that the inability to actually steer the front wheel of the DF bike would result in me falling over sideways at the least provocation. How bad would this be? Is the concept completely unworkable? |
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#2
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Recumbent trike-DF tandem
On 12/15/2013 12:00 PM, Ralph Barone wrote:
I've been contemplating building/buying a tandem for my wife and I, but think she might be better served by a recumbent trike, while I still prefer the standard diamond-framed upright bike. The Haas Pino http://hasebikes.com/96-1-Tandem-Pino-Tour.html looks interesting, but also rather pricey. This home-made hybrid http://www.gizmag.com/tandem-trike-for-brain-injury-therapy/18775/ looks to be almost exactly what I'm looking for, except I think that not being able to tilt the upright portion of the bike might lead to stability problems in corners. Finally, I noticed that the Greenspeed Anura http://www.greenspeed.com.au/anura.html has an optional adapter http://www.greenspeed.com.au/anura/Tandem.Coupling2400.jpg that allows you to link two together to make a tandem. I was wondering whether I could just take the front wheel off my regular touring bike, clamp it onto the adapter and (differing axle heights neglected) build a tandem that way. A friend of mine mentioned that the inability to actually steer the front wheel of the DF bike would result in me falling over sideways at the least provocation. How bad would this be? Is the concept completely unworkable? No more reason to steer the rear half than any other tandem. That assumes the captain is competent and able, as we stokers do. How bad would it be? Hangs on mass and velocity, right? Just highly unlikely when coupled to a three wheeler up front. Not to my taste, but instability is probably your smallest problem, what with four wheels on the ground and all. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#3
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Recumbent trike-DF tandem
On Sunday, December 15, 2013 1:00:55 PM UTC-5, Ralph Barone wrote:
I've been contemplating building/buying a tandem for my wife and I, but think she might be better served by a recumbent trike, while I still prefer the standard diamond-framed upright bike. The Haas Pino http://hasebikes.com/96-1-Tandem-Pino-Tour.html looks interesting, but also rather pricey. This home-made hybrid http://www.gizmag.com/tandem-trike-for-brain-injury-therapy/18775/ looks to be almost exactly what I'm looking for, except I think that not being able to tilt the upright portion of the bike might lead to stability problems in corners. Finally, I noticed that the Greenspeed Anura http://www.greenspeed.com.au/anura.html has an optional adapter http://www.greenspeed.com.au/anura/Tandem.Coupling2400.jpg that allows you to link two together to make a tandem. I was wondering whether I could just take the front wheel off my regular touring bike, clamp it onto the adapter and (differing axle heights neglected) build a tandem that way. A friend of mine mentioned that the inability to actually steer the front wheel of the DF bike would result in me falling over sideways at the least provocation. How bad would this be? Is the concept completely unworkable? Well, if you want some speculation... First, I test-rode a Counterpoint tandem long ago, very similar to the Hase Pino Tour. It was very nice, no problems at all. My wife liked it too. If you're interested in a trike (recumbent or not) I think it's better to have the tadpole design (2 front wheels) rather than the delta (two rear wheels). Two rear wheels mean you'll either have only one of them driven (like on primitive rear-drive trikes) or you'll have a differential, which is complicated and expensive. You'll also have much more risk of toppling forward if you enter a corner too fast and brake hard while in a turn. By contrast, tadpoles (two front wheels) corner like cats. They need a steering linkage, but that's cheaper and simpler than a differential. Any trike adds complication on potholed roads. You're looking for three smooth tracks through the bumps instead of just one. If you hooked your single bike's front dropouts to an adapter on a trike, I don't know that it would be unstable. There are lots of trail-a-bikes in use, where parents tow their kids bikes using a similar arrangement. I've not heard many complaints. But then, the kids are lighter than you by far.... If you were seriously interested in either the custom arrangement or a manufactured one, you might ought to correspond with the builder. I think they'd be willing to talk to you. Having said that, I'd greatly prefer a two wheeled machine to one with three wheels. I rode an upright racing trike once - light weight, drop bars, ten or more speeds, one front and two rear wheels - and it was really disconcerting. I wouldn't have wanted to do even ten miles on it. Being unable to lean into a corner makes cornering very difficult. And hard on wheels, too, I suspect. - Frank Krygowski |
#4
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Recumbent trike-DF tandem
AMuzi wrote:
On 12/15/2013 12:00 PM, Ralph Barone wrote: I've been contemplating building/buying a tandem for my wife and I, but think she might be better served by a recumbent trike, while I still prefer the standard diamond-framed upright bike. The Haas Pino http://hasebikes.com/96-1-Tandem-Pino-Tour.html looks interesting, but also rather pricey. This home-made hybrid http://www.gizmag.com/tandem-trike-for-brain-injury-therapy/18775/ looks to be almost exactly what I'm looking for, except I think that not being able to tilt the upright portion of the bike might lead to stability problems in corners. Finally, I noticed that the Greenspeed Anura http://www.greenspeed.com.au/anura.html has an optional adapter http://www.greenspeed.com.au/anura/Tandem.Coupling2400.jpg that allows you to link two together to make a tandem. I was wondering whether I could just take the front wheel off my regular touring bike, clamp it onto the adapter and (differing axle heights neglected) build a tandem that way. A friend of mine mentioned that the inability to actually steer the front wheel of the DF bike would result in me falling over sideways at the least provocation. How bad would this be? Is the concept completely unworkable? No more reason to steer the rear half than any other tandem. That assumes the captain is competent and able, as we stokers do. How bad would it be? Hangs on mass and velocity, right? Just highly unlikely when coupled to a three wheeler up front. Not to my taste, but instability is probably your smallest problem, what with four wheels on the ground and all. Thanks. Now, what would be the large problems you alluded to? As I see it, between the adapter and the head bearings on the rear bike, there would be three axes of rotation between the two bikes. |
#5
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Recumbent trike-DF tandem
On Sun, 15 Dec 2013 18:37:04 -0800, Frank Krygowski wrote:
snip If you're interested in a trike (recumbent or not) I think it's better to have the tadpole design (2 front wheels) rather than the delta (two rear wheels). Two rear wheels mean you'll either have only one of them driven (like on primitive rear-drive trikes) or you'll have a differential, which is complicated and expensive. You'll also have much more risk of toppling forward if you enter a corner too fast and brake hard while in a turn. Ooooh yes indeed. As a case in point I present this video. http://www.youtube.com/watch?v=QQh56geU0X8 -- davethedave |
#6
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Recumbent trike-DF tandem
On 12/15/2013 8:37 PM, Frank Krygowski wrote:
On Sunday, December 15, 2013 1:00:55 PM UTC-5, Ralph Barone wrote: I've been contemplating building/buying a tandem for my wife and I, but think she might be better served by a recumbent trike, while I still prefer the standard diamond-framed upright bike. The Haas Pino http://hasebikes.com/96-1-Tandem-Pino-Tour.html looks interesting, but also rather pricey. This home-made hybrid http://www.gizmag.com/tandem-trike-for-brain-injury-therapy/18775/ looks to be almost exactly what I'm looking for, except I think that not being able to tilt the upright portion of the bike might lead to stability problems in corners. Finally, I noticed that the Greenspeed Anura http://www.greenspeed.com.au/anura.html has an optional adapter http://www.greenspeed.com.au/anura/Tandem.Coupling2400.jpg that allows you to link two together to make a tandem. I was wondering whether I could just take the front wheel off my regular touring bike, clamp it onto the adapter and (differing axle heights neglected) build a tandem that way. A friend of mine mentioned that the inability to actually steer the front wheel of the DF bike would result in me falling over sideways at the least provocation. How bad would this be? Is the concept completely unworkable? Well, if you want some speculation... First, I test-rode a Counterpoint tandem long ago, very similar to the Hase Pino Tour. It was very nice, no problems at all. My wife liked it too. If you're interested in a trike (recumbent or not) I think it's better to have the tadpole design (2 front wheels) rather than the delta (two rear wheels). Two rear wheels mean you'll either have only one of them driven (like on primitive rear-drive trikes) or you'll have a differential, which is complicated and expensive. You'll also have much more risk of toppling forward if you enter a corner too fast and brake hard while in a turn. By contrast, tadpoles (two front wheels) corner like cats. They need a steering linkage, but that's cheaper and simpler than a differential. Any trike adds complication on potholed roads. You're looking for three smooth tracks through the bumps instead of just one. If you hooked your single bike's front dropouts to an adapter on a trike, I don't know that it would be unstable. There are lots of trail-a-bikes in use, where parents tow their kids bikes using a similar arrangement. I've not heard many complaints. But then, the kids are lighter than you by far... If you were seriously interested in either the custom arrangement or a manufactured one, you might ought to correspond with the builder. I think they'd be willing to talk to you. Having said that, I'd greatly prefer a two wheeled machine to one with three wheels. I rode an upright racing trike once - light weight, drop bars, ten or more speeds, one front and two rear wheels - and it was really disconcerting. I wouldn't have wanted to do even ten miles on it. Being unable to lean into a corner makes cornering very difficult. And hard on wheels, too, I suspect. - Frank Krygowski And yet, "ideal for spastics" http://www.yellowjersey.org/photosfr...st/HWTRIKE.JPG Among the more memorable advertising phrases of all time. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#7
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Recumbent trike-DF tandem
On Monday, December 16, 2013 8:59:04 AM UTC-5, AMuzi wrote:
And yet, "ideal for spastics" http://www.yellowjersey.org/photosfr...st/HWTRIKE.JPG Among the more memorable advertising phrases of all time. Wow. Pre-PC? Or, as with so many other terms, did a once neutral but descriptive term since degenerate into being offensive? It's been pointed out that Gresham's Law applies to words as well as to coins. The bad usage drives out the good. - Frank Krygowski |
#8
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Recumbent trike-DF tandem
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#9
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Recumbent trike-DF tandem
wrote:
SANTA TO BARONE SANTA TO BARONE CUMIN BARONE http://www.nytimes.com/2010/08/01/tr...king.html?_r=0 Yup, that's what I would like to get the wife interested in, but she won't go unless I help to push. |
#10
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Recumbent trike-DF tandem
On 17/12/13 00:59, AMuzi wrote:
And yet, "ideal for spastics" http://www.yellowjersey.org/photosfr...st/HWTRIKE.JPG Among the more memorable advertising phrases of all time. Aw, that's gold. -- JS |
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