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700 x 33mm - Tubeless Ready
Donnelly Tires PDX Tubeless Ready Cyclocross Tire

Donnelly Tires
PDX Tubeless Ready Cyclocross Tire

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Drip city.

Drawing its name from Portland, the Donnelly Tires PDX Tubeless Ready Cyclocross Tire delivers confident, reliable handling and performance in all conditions – but especially the wet. Featuring a race-proven tread, the PDX uses a balanced center tread with aggressive shoulder knobs to balance fast rolling on the flats and confident cornering.

With cyclocross performance in mind, this PDX is offered with Donnelly's Tubeless Ready technology. Mounting easily to most tubeless-ready rims, the PDX can be run sans tubes for improved ride quality, increased flat protection, and superior traction.

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.


Features:

  • Cyclocross tire designed for racing in wet, muddy conditions.
  • Fast-rolling center tread balanced by aggressive shoulder knobs.
  • Soft rubber compound provides extra grip and shock absorption.
  • Tubeless-ready design mounts easily to most tubeless ready rims.
  • Can be used with or without tubes.
  • Width: 33mm.
  • Weight: 426g.
 

Tire Type: Tubeless Ready 

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Hermosa tubular tubular
by Tommy
Cycling Enthusiast
Portland, OR

Perfecto para carreras en barro. Se puede seguir entrenando despus de la temporada de cuidados. Se recomendara sellador para los paseos de entrenamiento.

Reviewed 11/20/2018
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Mud Rippers
by FuriousD
Competitive Racer
Seattle, WA

Given the weather in the Pacific Northwest, these are my go to tires. I've raced and ridden the Donnelly PDX's in a variety of conditions, from dry to down right mud-fest. The tires grip when needed on those crazy off-cambers, and roll fast when speed is required. Easy to set-up and no issues running pressures as low as 25 psi.

Reviewed 11/15/2018
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classic tread, heavier new construction
by RabbitsEatCarrots
Competitive Racer
Portland, OR
3 of 3 customers found this review helpful.

Here are a bunch of details that might help weigh some trade-offs. First, the PDX tread pattern is fantastic. You can run these in dry conditions, or mud, or in-between. A file tread would roll slightly faster dry, but these are nearly as fast. A full mud tire would hook up marginally better in full slop, but these hold their own (and don't pack up as there is lots of space between the treads, which is key). On a course with some mud, some pavement, some gravel, etc, the PDX can't be beat. Now the variations. I loved my old, non-tubeless, foldable, 120 tpi PDX's. They were super supple and 270g (add 90g for a latex tube) but of course couldn't go too soft w/o worrying about pinch flats. Then earlier this fall I briefly had a Clement-branded PDX tubeless version (probably mfg'd roughly a year ago but sold in 2018) which weighed in at 430 g (not including the Stan's sealant I used) and had a much thicker, less supple casing than the non-tubeless version. First hard use (a CX race at low pressure), I somehow damaged the casing (never done that before - I'm 150lbs). It had no visible cuts or tears, but it had developed a significant bulge at one location (yes it was seated evenly). Finally I got the currently-selling Donnelly-branded PDX tubeless version. It's 495g on my scale. Yikes. The casing is even thicker, quite a bit more slipperyplastickyrubbery, and less supple than the older stock Clement PDX tubeless. The ride quality is comparable to the older tubeless version and not as good as the much-suppler, lighter, grippier non-tubeless 120tpi version. Both the Clement and Donnelly-branded tubeless specimens mounted tubeless w/o an air compressor on Ritchey WCS Zeta Disc rims, however both allowed some air to escape for a number of days despite sloshing a fair amount of sealant around in there, as evidenced by air bubbles coming thru the casing when viewed underwater. That's my experience. Hopefully they'll make a race-worthy tubeless PDX soon.

Reviewed 11/11/2018
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Ease of use.
by markmcmpdx
Cycling Enthusiast
Portland, OR

Mounted these tires with a floor pump, no problem. Went on my rims with ease. My go to tires for PNW mud.

Reviewed 11/10/2018
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