Summary: Carefully controlled tests have shown that larger wheels don’t roll faster—neither on pavement, nor on gravel, nor on cobblestones. The concept of better ‘roll-over’ applies to solid wheels, but not to pneumatic tires that absorb road irregularities, rather than lifting bike-and-rider over them. Wheel size doesn’t really matter as long as the… read more

Adrien Liechti did it! Ninety-six days and 16 hours after he started at Cap Angela in Tunisia, he reached Cape Agulhas at the southernmost tip of Africa, where the Atlantic and Indian Oceans meet. He’s cycled from the northernmost point in Africa to the southernmost, setting a world record in the process… read more

Making a good semi-slick tire is harder than it may seem at first. How do you balance the features that make Rene Herse tires perform so well on pavement and on loose surfaces: Thin tread: to keep the tire supple (but thick enough for long service life) Round profile: to avoid sudden changes in grip… read more