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Tires and Tubes
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Cyclocross Tires
Show All Products from Donnelly Tires
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Donnelly Tires PDX 120tpi Clincher Cyclocross Tire
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Description
Mechanic's Corner
Description
When there is mud on the course the Donnelly PDX is the tire of choice. It’s race-proven PDX tread and innovative design create the ultimate race ready cyclocross tire. PDX is the airport code for Portland, Oregon, where frequent rains create some of the muddiest cyclocross courses you’ll find anywhere. Although the PDX excels in the mud, this tire is truly an all-conditions performer. The cent
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Mechanic's Corner
Common Tire Sizes
A guide to common bike tire sizes and how to find the tires that will fit your bike.
Cyclocross Tires
An introduction to cyclocross tires.
Older Tire Sizes
Understanding older bicycle tire sizes.
Tire and Tube Replacement
Tire Size Chart
A useful chart for determining the tire size you need for your bicycle.
Tire Tips
Tips for proper bicycle tire mounting and tire safety.
Tire Width
A guide to understanding tire width.
Tread Patterns
A guide to understanding bicycle tire tread patterns and what you should look for.