More info on SRAM internal-gear hubs

More information on the SRAM S7 internal-gear hub — a reader has sent us links to step-by-step rebuilding information and model comparisons, with photos. The text is in Russian but the photos tell the story and then there’s Google Translate. We’ve also checked an updated all the links on the page.

S7 hub internals
S7 hub internals

Exposing and reinstalling the inner tube without removing the wheel

How to expose the inner tube for patching without removing the wheel, and how to put things back together — very useful on a bicycle where removing the wheel is difficult.  This article includes videos showing how to do it step by step.

tire from the rim in preparation for removing the inner tube
Freeing one side of the tire from the rim in preparation for removing the inner tube

SRAM Automatix 2-speed hub

New article about the SRAM Automatix two-speed hub. We have information on maintenance, choice among variant models, and how to adjust the speed at which it shifts automatically.

Exploded diagram of the SRAM Automatix hub
Exploded diagram of the SRAM Automatix hub

Customizing a fatbike

Bruce ingle on his customized fatbike
Bruce Ingle on his customized fatbike

Bruce Ingle customizes a fatbike —

Fatbikes are intended for use on soft, muddy, sandy, snowy surfaces but they need customization to make them truly practical for such use — in particular, fenders, wide-range gearing including ultra-low gears, and a way to carry baggage. Our new article will help you to customize a fatbike, but also gives you a look into customizing bicycles, in general.

The article is taken from a running e-mail discussion in which Bruce contemplates choices, decides on a bicycle purchase, and describes the various steps of customization and how they worked out.

More hubs in cable-pull cribsheet

Added information on four hubs to the internal-gear hub cable pull cribsheet:

Shimano Alfine 11-speed
SRAM G9
Sturmey-Archer S3X
Sturmey-Archer ASC

Thanks to Jeff Meredith and Michael Wilson for the measurements!

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