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Geared_hub_bikes · Geared Hub & Unconventional Drive Bikes

Group Information

  • Members: 199
  • Category: Other
  • Founded: Sep 6, 2008
  • Language: English
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Activity within 7 days:

3 New Members - 1 New Link - 26 New Messages

Description

This is a group for those interested in all categories of non-derailleur equipped bicycles. This includes all geared hub, fixed gear and single speed bikes, both historic and current production, including shaft drive and recumbent versions.

Gear hubs from Bendix, BSA, Shimano, Sturmey Archer, NuVinci, SRAM/Sachs and Rohloff are of interest as well as bikes using them. Also fixed gear and single speed bikes and components as well as the Schlumpf & Trutaviv two speed crank sets. If you know of any other brands of geared hubs they are of interest too. There are many other brands no longer being made.

Members are encouraged to discuss all aspects of these types of bikes including history, engineering, riding, accessories, maintenance and both advantages and disadvantages of them. Any information on reliability or efficiency of various brands and models of gear hubs is also welcome.

Please post regarding your areas of interest upon joining the group.

The home page photo is a cutaway of the Rohloff Speedhub. This is a 14 speed geared hub and is currently the most advanced unit in this category. It has an overall gear ratio range of 526%, equivalent to many 27 speed mountain bike derailleur systems.

Any member spamming will immediately be banned. First messages from new members require approval before being posted to prevent spam being posted.

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Most Recent Messages

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Re: S.A. single cable 5 speed reliability
Mike; Thanks for the reference to Phoenix. I Googled it and have added them to the IGH repair links in the Links area. Anyone with knowledge of such
Posted - Thu Nov 12, 2009 7:48 pm
Rich
astronut1001
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S.A. single cable 5 speed reliability
I have read from Peter Reed of Phoenix Hub Gears that the single-cable Sturmey 5 speeds had a fundamental design flaw - the internal loads could be unbalanced
Posted - Thu Nov 12, 2009 2:41 pm
Mike Wilson
carhillclmb
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Re: Prices on old two shifter 5 speed Sturmey Archer hubs?
... Actually it's the S5, with the pushrod and bellcrank on the left, I prefer. The 2 chain S5/1 and the S5/2 function identically but have minor internal
Posted - Wed Nov 11, 2009 5:12 pm
Mark Stonich
mnhpvamark
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Re: Prices on old two shifter 5 speed Sturmey Archer hubs?
I wonder what measurements this belief is based on. Measured IGH efficiency information seems to be relatively scarce and I remember the post from Mark
Posted - Wed Nov 11, 2009 4:41 pm
Rich
astronut1001
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Re: Prices on old two shifter 5 speed Sturmey Archer hubs?
... This is starting to make sense. Someone posted a question to the ebay seller stating this hub is known for it's low friction losses.
Posted - Wed Nov 11, 2009 2:44 pm
palatine_ej
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Message History

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2009 219 159 120 134 144 110 100 105 141 223 43
2008 14 83 112 159

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