Tag Archives: 9-speed

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 through axles, which insert into a fork with a … Continue reading

Posted in Updates | Tagged , , , , , , , , , , , , , , , , , , | Leave a comment

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.

Posted in Updates | Tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , | Leave a comment

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, … Continue reading

Posted in Updates | Tagged , , , , , , , , , , , , , , , , , , , , , , , , , | Leave a comment

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.

Posted in Updates | Tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , | Leave a comment

Additions to the Gear Calculator

New crank lengths have been added to the Gear Calculator and Internal Gear Calculator, so they can calculate gain ratios for children’s bicycles with cranks down to 100 mm (less than 4 inches).

Posted in Updates | Tagged , , , , , , , , , , , , , , , , , , , , , | Leave a comment

New tire sizes in Gear Calculator

Several tire sizes have been added to the Gear Calculator: Fatbike sizes: 26 inch tires, 26 x 3.8, 4.0, 4.25, 4.7 Wide 29ers: 29 x 2.7 and 3.0 32 inch and 36 inch (common on unicycles).

Posted in Updates | Tagged , , , , , , , , , , , , , , , , | 1 Comment

SRAM and Sachs Internal-gear hubs

Updates to our main page on Sachs and SRAM hubs , and our page on the G8 and G9 hubs. We have located additional technical information from SRAM, and wehave fixed a number of Web links that went bad.

Posted in Updates | Tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , | Leave a comment

Addition to page on SRAM G8 and G9 hubs

John has added some owner comments to the page on SRAM G8 and G9 internal-gear hubs. Opinions are generally very positive.

Posted in Updates | Tagged , , , , , , , , , , , , | Leave a comment

SRAM G9 Hub

Our article about the SRAM G8 hub now also covers the new G9 9-speed.

Posted in Updates | Tagged , , , , , , , , , , , , , , , , | Leave a comment

How the i-Motion 9 hub works

New section on how the SRAM i-Motion 9 hub works in the article about that hub.

Posted in Updates | Tagged , , , , , , , , , | Leave a comment