Blunt 35 29" (700c)Description The '35' part is a reference to its astounding width, which gives any wheel built with it a larger footprint, and so, more traction. Very useful for cross country and all mountain riders who are looking for lateral stiffness without so much weight *Formerly called the P35. Specs Rim Size 29" Width 35mm Height 22mm Optimal Tire Width 50mm 70mm Tire Interface Clincher Tubeless Valve Presta 32 40mm Bead Seat Diameter (BSD) 622 Effective Rim