|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Hey this is not stupid
Clever design:
https://cyclingindustry.news/veercyc...to-the-masses/ -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
Ads |
#2
|
|||
|
|||
Hey this is not stupid
On Wed, 21 Mar 2018 12:48:57 -0500, AMuzi wrote:
Clever design: https://cyclingindustry.news/veercyc...to-the-masses/ I like it. Therefore, something must be wrong: https://www.veercycle.com/products/belt-riveter "A customized handheld riveter for Split Belt bike conversions. This tool is required for sealing the belt splice. Easily clinch the rivet ends to secure them permanently in the belt teeth." Permanently? So, once I put the belt together with a $30 tool, I have to grind off the pin heads in order to remove the belt? How do I deal with different lengths of belt? The V shaped splice means that belts need to be stock by loop length (or whatever it's called). Or, maybe a belt tensioner and pulley as in the CAD rendering: https://cdn.shopify.com/s/files/1/1649/3971/files/Eagle_REsize_large.jpg?v=1520473135 The various parts of the drive train look rather customized, which implies that the belt would require replacing almost all the moving parts for a retrofit. The V thing only solves half the problem by making it easy to assemble. It does nothing for changing, replacing, or repairing the belt. As usual, no numbers, no test results, no photos of real bicycles, no prices, no availability, and no claims that it will solve every problem from pimples to global warming. As far as I can tell, this is a concept design. I still like the idea, just not as much as when I first saw it. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#3
|
|||
|
|||
Hey this is not stupid
On 3/21/2018 5:23 PM, Jeff Liebermann wrote:
On Wed, 21 Mar 2018 12:48:57 -0500, AMuzi wrote: Clever design: https://cyclingindustry.news/veercyc...to-the-masses/ I like it. Therefore, something must be wrong: https://www.veercycle.com/products/belt-riveter "A customized handheld riveter for Split Belt bike conversions. This tool is required for sealing the belt splice. Easily clinch the rivet ends to secure them permanently in the belt teeth." Permanently? So, once I put the belt together with a $30 tool, I have to grind off the pin heads in order to remove the belt? How do I deal with different lengths of belt? The V shaped splice means that belts need to be stock by loop length (or whatever it's called). Or, maybe a belt tensioner and pulley as in the CAD rendering: https://cdn.shopify.com/s/files/1/1649/3971/files/Eagle_REsize_large.jpg?v=1520473135 The various parts of the drive train look rather customized, which implies that the belt would require replacing almost all the moving parts for a retrofit. The V thing only solves half the problem by making it easy to assemble. It does nothing for changing, replacing, or repairing the belt. As usual, no numbers, no test results, no photos of real bicycles, no prices, no availability, and no claims that it will solve every problem from pimples to global warming. As far as I can tell, this is a concept design. I still like the idea, just not as much as when I first saw it. Yep, once I went deeper into the web page that was clear but still it is not stupid. Not yet perfect maybe but cool in its own way. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#4
|
|||
|
|||
Hey this is not stupid
Well, what is the service life expectancy of a belt drive? If it's
100,000 miles then you'd never need to remove it except in extraordinary circumstances. In cars they last 80,000 miles or more under high tension and much higher RPMs, not to mention heat. People are used to 1500-3000 miles from a chain, having to clean and lube it, etc. None of that would be necessary for a belt drive. A bike chain is an adaptation of a technology that's supposed to run in a clean oil bath, but puts it out in the open where it's guaranteed to be contaminated and fail after a short service life. It takes a shift in thinking- sort of like when I switched from cup and cone bearings to sealed bearing headset and Phil hubs on one of my bikes in 1996. Still haven't had to service those nearly 22 years later. I put in a sealed BB around 2000 and that's never needed to be serviced. I lube the chain once in a while, replace the cables as needed- otherwise I just ride the bike. I used to enjoy the winter teardown and rebuild, but really with modern technology that's no longer necessary. Even cup and cone hubs don't need to be rebuilt every year. The downside of belt drives, though, is that hus far they can't be used with a derailleur system. Hub gears have yet to match the efficiency of derailleur systems, although they are improved and offer wider and better spaced gears. Even my old Sachs T3 is pretty smooth and doesn't feel noticeably inefficient but the gear jumps are silly big. A belt drive might be just fine on that bike. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Stupid Americans! -- Stupid... Stupid... STUPID!!! ___________ ylojceq | Tom Kunich | Rides | 672 | December 3rd 04 06:49 AM |
Stupid Americans! -- Stupid... Stupid... STUPID!!! ___________ | David Reuteler | General | 0 | November 11th 04 06:41 PM |
Stupid Americans! -- Stupid... Stupid... STUPID!!! _____________ vyphih | Hunrobe | General | 11 | November 11th 04 02:45 AM |
Stupid Americans! -- Stupid... Stupid... STUPID!!! ___________ ylojceq | Tom Kunich | Rides | 4 | November 10th 04 04:26 AM |
Stupid Americans! -- Stupid... Stupid... STUPID!!! ___________ ylojceq | Tom Kunich | Social Issues | 2 | November 10th 04 04:26 AM |