BOS is the airport code for Boston, Massachusetts, the original hotbed of North American ‘cross and home to some of the harshest weather and the toughest courses. If you’re pinning on a number in New England you better be ready for rain, roots, ruts and mud. And, you better have a set of Donnelly BOS in your quiver.
This tire is even more aggressive than Donnelly's mud-proven PDX. It features b
A guide to common bike tire sizes and how to find the tires that will fit your bike.
An introduction to cyclocross tires.
Understanding older bicycle tire sizes.
A useful chart for determining the tire size you need for your bicycle.
Tips for proper bicycle tire mounting and tire safety.
A guide to understanding tire width.
A guide to understanding bicycle tire tread patterns and what you should look for.