Cross-section of a tyre. Credit: Deerwood CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)] via Wikimedia Commons
Cross-section of a tyre. Credit: Deerwood CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)] via Wikimedia Commons
This page last updated . Copyright © Andy Key and Madelaine Key. Cycling Dragon Ltd (trading as Bicycle Beano) is a company registered in England and Wales, company number 09087103.
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