|
|
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
Weight of tamdem versus two solo bikes
A question posed to the New Scientist's 4 July issue posits
that multi-seat bikes have a total weight advantage over solo bikes (per seat), asking at what seat count the weight advantage per seat fades away. Initially, I thought the premise of the question mistaken, but now I'm curious: Is it true that a modern tandem weighs less than two solo bikes of the same total carrying capacity? The illustration that accompanied the question is of a triple, which I've never seen anywhere in the wild and was probably chosen for its attention getting value. It's on page 56, alas no weblink is offered. Thanks for reading, bob prohaska |
#2
|
|||
|
|||
Weight of tamdem versus two solo bikes
Am 10.07.2020 um 23:00 schrieb bob prohaska:
The illustration that accompanied the question is of a triple, which I've never seen anywhere in the wild and was probably chosen for its attention getting value. It's on page 56, alas no weblink is offered. As a Grad student, I once had the chance to try out a triplet on the rear seat. While I am completely unable to ride stoker on a tandem, I was amazed to find that my stoker-panic completely disappeared on the triplet. Probably, the mass of two other adults ensures that the triplet wobbles more like a motorbike rather than like a tandem. |
#3
|
|||
|
|||
Weight of tamdem versus two solo bikes
On 7/10/2020 4:00 PM, bob prohaska wrote:
A question posed to the New Scientist's 4 July issue posits that multi-seat bikes have a total weight advantage over solo bikes (per seat), asking at what seat count the weight advantage per seat fades away. Initially, I thought the premise of the question mistaken, but now I'm curious: Is it true that a modern tandem weighs less than two solo bikes of the same total carrying capacity? The illustration that accompanied the question is of a triple, which I've never seen anywhere in the wild and was probably chosen for its attention getting value. It's on page 56, alas no weblink is offered. Thanks for reading, bob prohaska I don't know. My old friend Lenny Preheim (Toga Bike NYC) owned a six seater which he rented for parades and such. It was built more like a steel bridge (including prestress arc shape) and weighed like one too with motorcycle type rims and tires. So I agree there's some limit beyond which the vehicle weight per rider becomes deleterious to efficiency. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#4
|
|||
|
|||
Weight of tamdem versus two solo bikes
Am 10.07.2020 um 23:00 schrieb bob prohaska:
A question posed to the New Scientist's 4 July issue posits that multi-seat bikes have a total weight advantage over solo bikes (per seat), asking at what seat count the weight advantage per seat fades away. Initially, I thought the premise of the question mistaken, but now I'm curious: Is it true that a modern tandem weighs less than two solo bikes of the same total carrying capacity? Let me put a goalpost he https://onlinebicyclemuseum.co.uk/19...er-swb-tandem/ The Claude-Butler USWB I used to ride is advertised as 45 lbs including mudguards (mine was from the 1950's with IIRC three-speed deraillieur gears, not the original 1938 single speed). |
#5
|
|||
|
|||
Weight of tamdem versus two solo bikes
On 7/10/2020 5:54 PM, Rolf Mantel wrote:
Am 10.07.2020 um 23:00 schrieb bob prohaska: A question posed to the New Scientist's 4 July issue posits that multi-seat bikes have a total weight advantage over solo bikes (per seat), asking at what seat count the weight advantage per seat fades away. Initially, I thought the premise of the question mistaken, but now I'm curious: Is it true that a modern tandem weighs less than two solo bikes of the same total carrying capacity? Let me put a goalpost he https://onlinebicyclemuseum.co.uk/19...er-swb-tandem/ The Claude-Butler USWB I used to ride is advertised as 45 lbs including mudguards (mine was from the 1950's with IIRC three-speed deraillieur gears, not the original 1938 single speed). A thing of beauty indeed, thank you. A modern triplet he http://sandsmachine.com/a_san_t5.htm -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#6
|
|||
|
|||
Weight of tamdem versus two solo bikes
AMuzi wrote:
On 7/10/2020 5:54 PM, Rolf Mantel wrote: Am 10.07.2020 um 23:00 schrieb bob prohaska: A question posed to the New Scientist's 4 July issue posits that multi-seat bikes have a total weight advantage over solo bikes (per seat), asking at what seat count the weight advantage per seat fades away. Initially, I thought the premise of the question mistaken, but now I'm curious: Is it true that a modern tandem weighs less than two solo bikes of the same total carrying capacity? Let me put a goalpost he https://onlinebicyclemuseum.co.uk/19...er-swb-tandem/ The Claude-Butler USWB I used to ride is advertised as 45 lbs including mudguards (mine was from the 1950's with IIRC three-speed deraillieur gears, not the original 1938 single speed). A thing of beauty indeed, thank you. A modern triplet he http://sandsmachine.com/a_san_t5.htm Wow! 12 S and S couplers at, what, $300 a piece. That’s gotta be a pricey bike. |
#7
|
|||
|
|||
Weight of tamdem versus two solo bikes
On 7/10/2020 7:18 PM, Ralph Barone wrote:
AMuzi wrote: On 7/10/2020 5:54 PM, Rolf Mantel wrote: Am 10.07.2020 um 23:00 schrieb bob prohaska: A question posed to the New Scientist's 4 July issue posits that multi-seat bikes have a total weight advantage over solo bikes (per seat), asking at what seat count the weight advantage per seat fades away. Initially, I thought the premise of the question mistaken, but now I'm curious: Is it true that a modern tandem weighs less than two solo bikes of the same total carrying capacity? Let me put a goalpost he https://onlinebicyclemuseum.co.uk/19...er-swb-tandem/ The Claude-Butler USWB I used to ride is advertised as 45 lbs including mudguards (mine was from the 1950's with IIRC three-speed deraillieur gears, not the original 1938 single speed). A thing of beauty indeed, thank you. A modern triplet he http://sandsmachine.com/a_san_t5.htm Wow! 12 S and S couplers at, what, $300 a piece. That’s gotta be a pricey bike. That's true but open air freight rates on a triplet for one European vacation is about the same price. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#8
|
|||
|
|||
Weight of tamdem versus two solo bikes
On Friday, July 10, 2020 at 7:18:54 PM UTC-5, Ralph Barone wrote:
A modern triplet he http://sandsmachine.com/a_san_t5.htm Wow! 12 S and S couplers at, what, $300 a piece. That’s gotta be a pricey bike. But the picture of the triplet only has 9 S&S couplers. I know the description says 12 but I count 9. ???? |
#10
|
|||
|
|||
Weight of tamdem versus two solo bikes
On 7/10/2020 3:54 PM, Rolf Mantel wrote:
Am 10.07.2020 um 23:00 schrieb bob prohaska: A question posed to the New Scientist's 4 July issue posits that multi-seat bikes have a total weight advantage over solo bikes (per seat), asking at what seat count the weight advantage per seat fades away. Initially, I thought the premise of the question mistaken, but now I'm curious: Is it true that a modern tandem weighs less than two solo bikes of the same total carrying capacity? Let me put a goalpost he https://onlinebicyclemuseum.co.uk/19...er-swb-tandem/ The Claude-Butler USWB I used to ride is advertised as 45 lbs including mudguards (mine was from the 1950's with IIRC three-speed deraillieur gears, not the original 1938 single speed). Wow, thanks for that link. I actually owned one of those (or perhaps it was built 10 years later). Mine was fully chrome plated. It was, ahh, interesting to work on. The story I was told was that the one I had dated from '48, but I could never find anything definitive; I sold it just about when the WWW came into being, so it never occured to me to "google it" until now. Mark J. |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Richmond Park closed to cars, bikes next if cyclists fail to ride solo | Simon Mason[_6_] | UK | 0 | March 26th 20 06:17 PM |
Tamdem Recommendations | Neil Smith | UK | 31 | October 9th 08 05:21 PM |
WTD: Tamdem Richmond cycle | elyob | UK | 16 | November 23rd 05 11:10 PM |
weight limit for bikes | paul | UK | 11 | June 4th 05 06:23 PM |
Weight confusion- old versus new parts | Dan Daniel | Techniques | 10 | December 27th 03 08:10 PM |