Category Archives: Components

Why not “Made in U.S.A.”?

At Compass Bicycles, we think a lot about manufacturing. We know what we want to make, but how should we make it, and where? We are not looking for the lowest cost, but for the highest quality. The conditions under … Continue reading

Posted in Rene Herse cranks, Testing and Tech | 38 Comments

Research & Development

Over the last decade-and-a-half, I’ve thought a lot about product development. Long before Bicycle Quarterly and Compass Bicycles, I was involved with several companies as a technical writer and translator. Part of my job was writing instructions, so I got … Continue reading

Posted in Testing and Tech, Tires | 43 Comments

Tire Pressure: Data and Details

A little while ago, I wrote about how new scientific research has allowed us to design wide, supple tires that offer the speed of narrow, high-end racing tires. The key finding is that above a certain threshold, increasing tire pressure … Continue reading

Posted in Testing and Tech, Tires | 19 Comments

Compass Centerpull Brake Specs

The new Compass centerpull brakes have been very well received. Numerous builders have asked for the complete specifications for the brakes, since many riders plan to use them on their new bikes. We sold so many of the centerpull braze-ons … Continue reading

Posted in Brakes | 7 Comments

The Tire Pressure Revolution

Of all our research on tires, the most revolutionary finding is this: Tire pressure has almost no effect on a tire’s speed. We did not believe it at first, either, so we’ve tested it numerous times. It’s been confirmed numerous … Continue reading

Posted in Testing and Tech, Tires | 124 Comments

MKS: Pedals and more in Japan

During our recent visit to Japan, we had the privilege of visiting Mikashima Industrial Company, better known as MKS, the makers of bicycle pedals. We had expressed an interest in MKS to our trading company. Fortunately, the MKS’s president, Toshiyuki … Continue reading

Posted in Pedals | 42 Comments

TPI and Tire Performance

Tires with supple casings are faster, more comfortable and simply more fun to ride. Most cyclists know this, but how do you measure “suppleness”? A measure that often is used to describe the quality of tires is “threads per inch” … Continue reading

Posted in Tires | 21 Comments