There are a lot of bikes designed for 650c/571 mm tires, but until recently, only very narrow widths have been available in this size. The Terry Tellus is the first 650c tire offered in a 28mm width. The Tellus TT improves on the original Tellus by adding PT protection technology which provides a nearly inpenetrable layer of tire protection -- three times more puncture resistance than a kevlar belted tire of the same approximate weight. Max inflation pressure: 107 psi; weight 317.5 g (11.2 oz).

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