Category Archives: Testing and Tech

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

The Biomechanics of Planing

We discussed “planing” in a recent post by looking at power data from a double-blind test of two different bikes. The data showed that the same rider’s power output was consistently higher on a bike with a more flexible frame … Continue reading

Posted in Testing and Tech | 84 Comments

What is Planing?

Can a 650B randonneur bike climb as well as the best titanium racing bikes? It did climb as well in a Bicycle Quarterly test, and that raised a few eyebrows. After all, the randonneur bike weighed 10 pounds more… Theoretically, … Continue reading

Posted in Bicycle Quarterly Back Issues, Testing and Tech | 110 Comments

Putting Our Lives on the Line

Testing bicycles may sound like a dream job – you get to ride all kinds of bicycles without having to pay for them – but it comes with risks. We ride the bikes hard, although we don’t abuse them. We … Continue reading

Posted in Cycling Safety, Testing and Tech | 80 Comments

“What’ll she do?”

When I was a kid, I loved cars. My first question to any owner of a sports car was: “What’ll she do?” I approach bikes similarly – I care about how they ride first and foremost. Some cyclists these days … Continue reading

Posted in Testing and Tech | 39 Comments

How much faster are supple tires?

Improving your tires can make the biggest impact in the speed of your bike (apart from changing the motor!). The difference is especially pronounced for slower riders, whose wind resistance is less than that of faster riders. Most cyclists know … Continue reading

Posted in Testing and Tech, Tires | 71 Comments

The 650B Ancestor: René Herse Randonneur

I had the opportunity to ride a favorite classic René Herse again recently. This is the bike that started the current trend of 650B bikes in North America. It’s the bike that made us re-evaluate front-end geometries and wide tires. … Continue reading

Posted in A Journey of Discovery, Rides, Testing and Tech | 65 Comments