New Pirelli Smartube RS Tubes are Fast as Tubeless but Lighter
Summary by Bikerumor
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1 Articles
New Pirelli Smartube RS Tubes are Fast as Tubeless but Lighter
Pirelli’s signature yellow thermoplastic polyurethane (TPU) inner tubes now have an “RS” version to match their top-of-the-line tube-type road bike tires…like the P-Zero Race RS launched in March. The weight savings and claimed (up to) 12% reduction in rolling resistance come from a new TPU formulation, plus a minimalist Presta valve with non-replaceable, non-repairable glued core. In fact, they don’t want you patching or repairing these either……
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