The Z3 is the next step in the evolution of our notorious wheels; having been rigorously tested to ensure it is the stiffest, lightest, most resilient and reliable carbon wheel BLB have ever produced. Crafted from the same super high modulus Toray carbon as our AEON frame, the Z3\'s sophisticated carbon layup grants lateral rigidity as well vertical, affording you total control in tight switchbacks and exceptional response in out of the saddle sprints.Created using the latest 3D software and manufacturing techniques, the Z3\'s aerodynamic profile will cut through the air with minimum drag. High quality sealed bearings keep the Z3 rolling faster for longer.These rims can be used with carbon-compatible front brakes. Using normal brakes that aren’t compatible with carbon rims is extremely dangerous and invalidates any sort of warranty. The size is 700c, meaning it is compatible with all road-bike tyres. You can mount 23 or 25 tyres and will need a 80mm-valve inner tube.