Shimano 9-speed cassettes

One-ramp sprocket for Shimano Hy0perglide cassette
One-ramp sprocket for Shimano Hyperglide cassette
Two-ramp 15T sprocket for Shimano Hyperglide cassette
Two-ramp 15T sprocket for Shimano Hyperglide cassette

Major update to our page on Shimano and Shimano-compatible 9-speed cassettes. We’ve fixed broken links from when manufacturers updated *their* Web pages, and updated information on availability.

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.

Gear Calculator updated and now also in German

The Sheldon Brown gear calculator is updated and improved: more tire sizes are covered including fatbikes, 29ers, 29+ and monster bikes, and we now have a version in German, as well as French.

Riding with RidewithGPS

New article on riding with the RideWithGPS app. What you need to know to get started: mounting your phone, keeping it charged, downloading routes, and recording your rides.

RidewithGPS

Tools and supplies to work on tires

Article about tools to care for tires and inner tubes (pumps, tire removal and replacement tools, flat-fixing supplies) pulled out of the article on fixing flat tires, which was getting too long, and expanded.

A good patch kit
A good patch kit
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