The Radio Argon Pro Rim is a fully flash welded, tubeless ready rim that Radio spent a long time perfecting to ensure the rim profile maximises strength and reduces overall weight. Designed in-house in Cologne, Germany the Radio Argon Rim is one of the lightest pro alloy rims they have ever produces. With extensive track testing over the course of two years to really get these rims perfect. ###section### Product Specs WHEEL SIZE: 20" SEAM: Flash Welded ERD: 406mm HEIGHT: WIDTH: 28mm SPOKE HOLES: 36h WEIGHT: 0.69lbs (315g) Colour: Black; Size: Rear, Front