The Challenger features 4.5 diameter by 15 wide aluminum drum tubes with black polycarbonate end caps, for the cost conscious riders who value the ride of the larger drums. A black epoxy powder coated frame and orange belt round out the Challenger. Like all Kreitler roller sets, the Challenger also works with the Killer KOOL Headwind and Flywheel. Click on the photo to see a larger image.
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