The Clement LAS Tubular is a cutting-edge cyclocross tire that LAS_clincher_1combines the LAS tread with an innovative tubeless casing to create the ultimate tubular tire. Named after the most entertaining and exciting cyclocross race in America, CrossVegas, the LAS for Vegas' airport code is our fastest cross tire, best suited for dry conditions or grass courses. Tread The LAS nail file tread starts short and fine at the center of the tire and gets progressively taller and coarser as it approaches the shoulder knobs. This creates predictable performance at all angles when cornering and riding off camber sections while keeping straight away riding as fast as possible. The LAS has the same side-knob construction as its cyclocross brother the PDX, giving you superior edge control in leans and a traction advantage coming out of the corner. Tubeless There is no innertube, instead the entire casing is airtight. This creates a very light-weight tire, but more importantly it is very resistant to punctures. The tire accepts sealant liquid easily, and typical punctures can be quickly sealed from the inside. Durable The sidewall is much more durable than traditional tubulars, and is coated with rubber to prevent deterioration from water, mud, and dirt. No additional sidewall coating is necassary. The tread is manufactured integral with the tire and can't peel away or become detached from the casing. High-quality Every tire is produced in a highly exacting process that creates a ve nail-file tread is short and fine at the center, progressively taller and coarser towards shoulders Offers superior edge control in leans and a traction advantage coming out of the corner. Front or Rear