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!
This is the outer most part of the wheel. The rim is the part that the tire mounts to. Rims are made in a variety of sizes. The most common rim sizes are 20”, 24”, 26”, and 700C. Tires are specific to the rim size. Rims are made from a variety of materials. Some rims have a machined braking surface machined onto the side wall. Many of these will have special coatings to prevent damage from heat caused during braking. There are also disc brake specific rims. There are a growing number of tubeless rims. These rims tend to be slightly heavier, but due to the lack of a tube, end up being lighter weight than a rim with a tube. Rims are made from steel, aluminum, ceramic, and carbon fiber.