WikiNerdia is a resource offered by Giantnerd® in an effort to help build a community where everyone can share knowledge in an open and honest way about products, brands, and terminology. This is a call out to all nerds in the know; help out the less experienced adventurers, pass your knowledge on or it will be lost forever! Add to it and make edits as you see fit. As with everywhere else on Giantnerd®, your collaboration will shape the way members treat and view products, categories, and the outdoor lifestyle—it’s critical to making the Giantnerd® community the best shopping site on the social web!
The rubber patch, contact patch or footprint of the tire is the area of the tire that has contact with the road or trail. The part of the tire transmits the force between the road/trail and the tire via friction. 29" inch wheel mountain bikes have a larger rubber patch than 26" wheel mountain bikes. This larger patch helps aid in traction for cornering and climbing.