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700 x 33mm - Tubular
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700 x 33mm - Tubular
Donnelly Tires BOS Tubular Cyclocross Tire
Donnelly Tires BOS Tubular Cyclocross Tire

Donnelly Tires BOS Tubular Cyclocross Tire

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The BOS Tubular Cyclocross Tire is tubeless ready and excels in rain and mud. The tread profile features buttressed side-knobs for excellent traction in soft, slippery off-cambered sections and corners. Zig-zag center knobs offer additional traction for maximum control.

A guide to common bike tire sizes and how to find the tires that will fit your bike.
Understanding older bicycle tire sizes.
A useful chart for determining the tire size you need for your bicycle.
Tire Tips   
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.

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