Gear calculator updated

The Gear Calculator has been updated with new Shimano, SRAM and Campagnolo cassettes, and the new Shimano Steps 5-speed internal-gear hub for E-bikes. French and German versions of the Calculator have been updated too.

Revisions to Sachs/SRAM Internal-gear hub pages

Every once in a while we go back and review our pages to deal with product changes and link rot. We just did that with all our pages about Sachs and SRAM internal-gear hubs. You will find product manuals here which are hard to find anywhere else. You can start with our main page about these hubs.

Sachs and SRAM internal-gear hubs update

We have updated all of our pages about Sachs and SRAM internal-gear hubs, fixing broken links and, regretfully, indicating that SRAM is now no longer making internal-gear hubs. But many of you are using these hubs, and we are maintaining information on them. Main page with links to others.

The Elan 12-speed -- biggest, baddest internal-gear hub of them all
The Elan 12-speed — biggest, baddest internal-gear hub of them all

Updates to chainline and frame-spacing pages.

As of 2018, fatbikes and disk brakes have led to several new axle-length standards. The problem of disk brakes’ pulling the hub out of the front dropouts  has been addressed with thru axles, which insert into a fork with a hole rather than a slot at the end of each blade. Our chainline page and cribsheet as well as our frame spacing page and cribsheet  are now updated to cover these developments.

Chainline diagram
Chainline diagram

Gear Calculator updated!

Our gear calculator is now updated to cover the newest cassettes from Shimano, SRAM and SunRace. — Still to update: the French- and German-language versions.

Shimano 8-speed IG hub update

Sheldonbrown.com provides a forwarding page whenever we consolidate or move material. Not so Shimano, which broke all our links to its technical information. Sigh. We have just repaired our page on Shimano 8-speed internal-gear hubs.

Shimano Alfine 8-speed hub
Shimano Alfine 8-speed hub

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Upgrading to index shifting

We have a major update to our page on upgrading older bicycles to index shifting. This can be done at a lower cost than you may expect, because there is usually no need to replace the rear wheel! Shifter choices, parts compatibility issues.

Shimano RapidFire shifter
Shimano RapidFire shifter

 

Update on Shimano IG Hubs

Installing the electrical shifting motor unit on a Shimano internal-gear hub.
Installing the electrical shifting motor unit on a Shimano internal-gear hub.
We have updated our page on issues common to Shimano Nexus and Alfine hubs — new hub models, electronic shifting.

Raleigh Twenty page expanded

Our page about Raleigh Twenty bicycles has been expanded with two new sections, about the hinge and the rear rack. Find out why the humble and disdained Pletscher rear rack works great on a Twenty, and how to make a replacement for a missing hinge key.

Sheldon Brown's 8-speed Raleigh Twenty bicycle
Sheldon Brown’s 8-speed Raleigh Twenty bicycle
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