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#21
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best internal shifting hub?
My 2 cents worth
Chet Kyle and Jim Browning set up a testing rig with the purpose of finding the most efficient transmission system. Write up appeared in an issue of Human Power. Their conclusion: Nothing beats a standard derailleur system for lowest power lost. The Rohloff was good in some gears and bad in others. I seem to recall the efficiency changed by 15% over the range of gears. Overall the Rohloff is a beautiful piece of engineering and craftsmanship. Strange as it sounds a Shimano Nexus 7 tested the best of all the internal hubs in terms of efficiency in transferring power. Only a couple of percent lower the a derailleur system. Biggest problem with it, in my opinion is, no quick release for easy tire repair. Rohloff does have a QR The old style Sturmey Archer tested poorly. Speedy Khoomei wrote: What is the best internal shifting hub on these important points: - reasonably lightweight compared to a road group - reliable operation - parts are available from the usual channels, not some guy working out of his garage. - has more than 3 speeds. -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 80,000 Newsgroups - 16 Different Servers! =----- |
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#22
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best internal shifting hub?
The old style Sturmey Archer tested poorly. Of course it did. The weight of the average cycle with a Sturmey-Archer internal 3-speed hub would also do poorly. But I'd like to see a test of how ANY internal hub compares with a Sturmey-Archer AW after say, 25 years of use? Reliablility? Durability? Efficiency? Kinda funny that this survey says "more than 3 speeds"... Vin - Menotomy Vintage Bicycles, Inc. http://OldRoads.com |
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