The hutchinson sector tubeless road tyre was developed to improve performance when racing the cobbled paris roubaix classic the sector tyre therefore performs to an excellent level on any section of rough road the sectors tyre profile is very rounded with a slick section on top and grooved tread sidewalls the sector does require protectrsquoair max latex sealant to be air tight but this reduces the rolling inertia of the wheel and also reduces the chances of getting a puncture on rough ro