BOS is the airport code for Boston, Massachusetts, the original hotbed of North American cyclocross 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 Tubeless Ready Cyclocross Tires in your quiver.
This tire is even more aggressive than Donnelly's mud-proven PDX. It features buttressed side-knobs for outstanding traction in super muddy corners and off-cambers, and a center tread pattern that is all bite when it comes down to a tractor pull.
Donnelly Tires were previously known as Clement tires, but due to a licensing have had to change their name. If you have used Clement tires in the past, Donnelly has retained the materials, designs, and compounds in these tires.
- Buttressed side-knobs for superior cornering traction.
- Unique center knob pattern designed for maximum traction when you need it most.
- Soft rubber compound provides extra grip and shock absorption.
- Tubeless-ready design mounts easily to most tubeless ready rims.
- Tubeless casing is reinforced for wear, features an Aramid bead.
- Precision design creates a straight tire with no variances in size or alignment.
- 700 x 33mm tire.
- 456 grams.
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.