clincher
 n.— «Race on Tubular tires, also known as “sew-ups”—When I was a young buck in college I actually got into a bit of serious cycling and raced for a while. It wasn’t long before I realized that all of the fast guys rode on Tubular tires. Tubbies as I like to call them differ from clinchers in that they don’t have beads. Instead, the two edges of the tire are sewn together around the inner tube. Tubulars are used on special rims, and are held on to the rims by glue. Tubulars used to be fairly common on high-performance bicycles, but these days they are an endangered species on most bikes.» —“Top 10 Ways to Suck at Your Next Race” by Roman Mica EverymanTri (Boulder, Colorado) July 5, 2007. (source: Double-Tongued Dictionary)

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