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 tubulars in your quiver. This tire is even more aggressive than our 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.
- 700 x 33mm
- 386 grams
- 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 design means an airtight casing with no inner tube to puncture.
- Rubber-coated sidewalls are extremely durable and prevent deterioration from water, mud and dirt.
- No additional sidewall coating necessary.
- All in one construction means tread will not peel away from the tubular casing.
- Precision design creates a straight tire with no variances in size or alignment.
- The tire and base tape are consistently straight making it easy to glue and install to your wheel.
- A removable valve core allows for valve extenders installation as well as insertion of tire sealant.
- Liquid sealant can be used with all Donnelly tubulars to prevent or repair typical punctures.
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