Category Archives: Components

Experiencing Suspension Losses

Suspension losses cause a significant resistance when riding your bike. We knew this from our testing, but it was illustrated in a powerful way during a 300 km brevet a few years ago. My friend Ryan and I rode in … Continue reading

Posted in Testing and Tech, Tires | 47 Comments

Grand Bois 5-speed Cassette Hubs

Compass Bicycles now offers the Grand Bois freewheel hubs for 120 mm rear spacing, with 5- and 6-speed cassettes. That’s good news for those of you with older bikes that you want to ride more often. There are many wonderful … Continue reading

Posted in hubs/rims | 41 Comments

A full line of Extra Leger tires

The Grand Bois Extra Léger tires have been available for the better part of a year now, and the feedback has been entirely positive. Compared to the standard Grand Bois tires, the Extra Léger (Extralight) models use an even lighter … Continue reading

Posted in Tires | 39 Comments

700C x 29 mm Extra Léger Tires

We asked Grand Bois for Extra Léger tires in other sizes than those already available. As a result, we now have a limited quantity of 700C x 29 mm (28 mm nominal width) Grand Bois Extra-Léger tires available. They are … Continue reading

Posted in Tires | 15 Comments

Extra-Leger Tires in Stock

Many of our customers have been waiting patiently for the Grand Bois Extra Léger tires. These tires are made in small quantities, so they are hard to keep in stock. We just received another shipment. The latest batch has tan … Continue reading

Posted in Tires | 34 Comments

It’s Not Easy to Be Honest

I used to wonder why manufacturers offer things that are popular, even though they don’t work well. I recently read an interview with a BMW engineer, who complained about the huge wheels that the company now puts on their cars. … Continue reading

Posted in Rene Herse cranks, Testing and Tech | 89 Comments

Tire Width: how much difference do a few millimeters make?

At Compass Bicycles, we often get the question: “I am riding 23 mm tires right now, and I wonder whether a 25 mm-wide tire would make a noticeable difference.” The graph below, taken from the Spring 2013 issue of Bicycle … Continue reading

Posted in Testing and Tech, Tires | 72 Comments