This is the wheel of choice for the world’s best track racers. With hundreds of Olympic medals it offers a clear competitive advantage on the velodrome.The Comète Track wheel features two perfectly lenticular flanges that can generate their own momentum when a certain speed is reached. High-modulus unidirectional carbon fibers are wrapped around a honeycomb structure to deliver unrivaled stiffness. The hub runs on ultra-smooth bearings to save the extra watts through reduced rolling resistance.With all of these technical advantages it’s no surprise that the world’s best track athletes sponsored or not won’t use anything else. Available in both front and rear versions. Key benefits Unbeatable aero performance proven by the world’s best athletes. Wider rim bed for seamless wheel-tire integration. Convex lenticular body offers exceptional aero performance. Superior rigidity for maximum power transmission. Carbon dishes and lenticular flanges for uncompromising stiffness. Roll faster with greater efficiency. Tubular rims and interchangeable QRM cartridge bearings minimize friction. Hubs Sealed cartridge bearings QRM Fixed cog Axle material: aluminum Body: aluminum QRM bearing preload technology Delivered with User guide Fixing nuts Valve extender Cog lock nut Wheelbag Rims Tire: tubular SUP welding technology Structure 6106 aluminum rim body SUP joint Symmetrical lenticular walls Unidirectional and honeycomb weave high modulus carbon fiber Tyre: tubular ETRTO size: 28 tubular Intended use Recommended tire sizes: 18 to 25 mm For a longer longevity of the wheel Mavic recommends that the total weight supported by the wheels doesn't exceed 120kg bike included Minimum cog width : 75mm Max Pressure: see indication on wheel and tire If they differ use the lowest of the 2 Minimum and maximum allowed tyre width: see indication on wheel Information on specified weight The weight of the wheels is announced at +/-5% in XD/XD-R and Center Lock version without quick release nor valve nor rim tape