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Clement’s PDX tubular tires are made for mixed-condition courses replete with wet and muddy features as well as fast rolling sections. The tires get their name from Portland, Oregon, where mud bowl courses are a standard weekend affair.
Rows of tall and aggressive knobs line the edges of the tire for extra traction through sloppy courses with slick, muddy turns. The knobs are spaced far apart to help shed the sticky mud so you won’t get bogged down with 20-pound wheels. The PDX’s center knobs, however, are spaced closer together to keep the tires rolling fast through the straightaways on dry terrain.
The tires use a tubeless casing design with removable valve cores so you can use liquid sealant to prevent or fix small punctures. With a soft rubber compound, the tires not only grip well on loose terrain but also mount easily.
All of Clement’s tubulars have a rubber sidewall coating to help preserve the tires through tough cross conditions. The rubber coating makes them feel less supple than tires with untreated cotton casings, but they’ll last a whole ‘cross season even if you don’t keep your bike squeaky clean.
The PDX tubulars work well for racers who live in wet locations like the Pacific Northwest or the Northeast, but want a little versatility in case a dry spell sneaks into the weather pattern. However, if mud is all you ride, all you want, and all you can think about, Clement’s new BOS tires offer even more mud traction control with buttressed side knobs for even more bite.