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.

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.

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

Additions to the Shimano 8-speed IG hub page

Sheldonbrown.com reader Bruce Dance has contributed some helpful information on compatibility — or the lack of it — among different models. Read it on the 8-speed internal-gear hub page

Shimano Nexus hub
Shimano Nexus hub

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Cyclecomputer and GPS accuracy

New page about the history of distance and speed measurement on bicycles, and the limitations of accuracy in measurement. Did you know that GPS readings wander, so you can rack up some distance even if you are standing still?

Raw GPS readings don't quite follow the road.
Raw GPS readings don’t quite follow the road.

Cyclecomputer database

Our pages of cyclecomputer instructions have now been brought completely up to date, with links to user manuals for almost every make and model, including GPS. These pages are a unique resource.

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!

Shimano 4-speed hub gears

Shimano Nexus 4-speed coaster-brake hub
Shimano Nexus 4-speed coaster-brake hub

Expanded coverage of Shimano Nexus 4-speed hub gears — we now have rebuilding information, translated from manuals in German which are the only ones we could find online — complete instructions for both the freewheeling/Rollerbrake version and the coaster brake version. Thanks go to Patricia Morris for assistance with translation.

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