WTB is unveiling a new 650b tire: the Horizon 650 x 47 mm Road Plus with WTB’s Tubeless Compatible System (TCS). The tire offers the same overall diameter as a 700 x 30 mm road tire and is intended to be used for endurance road and gravel rides.
“At the same overall diameter as current endurance road bikes, the geometry remains unchanged – bottom bracket height, axle to crown, relative angles, all stay the same,” stated Chris Feucht, WTB’s manager of new product development. “Only additional chain stay clearance may be needed, though quite a lot of existing bikes on the market already clear this size.”
The new tires feature WTB’s lightweight casing and Dual DNA Rubber Compound with pre-production sample weights of 515g. The Horizon 650 x 47c Road Plus TCS tire will retail for $67.95 USD with a projected availability of June 2016.
WTB has compiled a list of currently compatible frames.