Pete Webber of the Boulder Cycle Sport Cyclocross Ambassador Team walks us thru the PDX Tubular.

Clement tubular cyclocross tires feature a tubeless construction (no inner tube) and removable valve core. The removable valve allows you to inject sealant liquid easily, and the lack of inner tube allows sealant to quickly repair typical punctures less than 1 or 2mm in size. Sealant can also be used preventively to help avoid flat [...]

Here’s our favorite articles for how to glue cyclocross tubulars. Bike Radar: Gluing tubular tyres for cyclo-cross (By Matt Pacocha) Embrocation Magazine: Gluing CX Tubulars (By Mike Zanconato)