Shimano Rollerbrake page updated

Revisions to the Shimano Rollerbrake page: links to Shimano’s (finally) well-organized compilation of Rollerbrake documentation; information on installing front Rollerbrakes.

Shimano Rollerbrake

Shimano Rollerbrake

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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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Choosing a bicycle headlight

Just in time for standard-time winter commutes — an article about choosing a headlight for your bicycle!

Bicycle headlight with shaped beam pattern

Bicycle headlight with shaped beam pattern

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Spoking for large hubs, improved

The article on special spoking patterns for use with extra-large hubs (for example, electric bicycle hub motors) has been improved with patterns which avoid twisting the hub shell for two of the hub and rim combinations. The article includes all the information needed to use Damon Rinard’s Spocalc (also on the site) to calculate spoke lengths for these patterns.

Non-torquing spoke pattern for 36-hole hub and 24-hole rim

Non-torquing spoke pattern for 36-hole hub and 24-hole rim

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Bicycle frame fatigue-resistance testing

Testing machine at EFBe laboratory

Testing machine at EFBe laboratory

The groundbreaking article about fatigue-resistance testing of bicycle frames — the results surprised even the people doing the test — now in a much-improved new translation from the original German.

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Framebuilder information from Damon Rinard

Screen shot from tube mitering software

Screen shot from tube mitering software

Another Rinard article updated: his page of links to information, sources of materials and software for amateur frame builders.

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Damon’s do-it-yourself carbon-fiber bicycle frame

Damon Rinard built a carbon-fiber bicycle frame in his garage! And we have just updated his pages describing how he did it, including sources for materials and tools. He points out that it’s actually much easier to build a carbon fiber frame than a steel frame.

Damon Rinard's do-it-yourself carbon-fiber bicycle frame

Damon Rinard’s do-it-yourself carbon-fiber bicycle frame

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Check spoke tension by ear when building a wheel

Check the level of spoke tension by ear — unless you are tone deaf, a musical pitch reference (pitch pipe, tuning fork, smartphone app etc.) is all you need to tell whether you have brought spokes up to the appropriate level of tension when building a wheel. It’s faster than using a tensiometer!

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Spocalc revised

The page for Damon Rinard’s spoke calculator has been revised, with an updated list of online spoke calculators, several comments and links, and better formatting. Now also includes links to spoke-calculator apps for iOS and Android smartphones!

screen shot from Spocalc

Screen shot from Spocalc

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SunTour Perfect, Pro-Compe and New Winner freewheels

freewheel14-38New page on SunTour Perfect, Pro-Compe and New Winner freewheels. These are no longer made, but there are a lot of them around and they offer many options including the ability to work with older frames that have smaller overlocknut distance than current frames. We have information on choosing, maintaining and customizing these freewheels.

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