Fulcrum Red Carbon XRP 6-Bolt MTB Wheelset The Red Carbon TM XRP is one of the lightest tubeless wheels available but while it boasts an extremely low weight it is also a formidable performance oriented wheel with a no-compromise construction. With podium potential in its DNA, the Red Carbon TM XRP is your best choice to improve your 26" mtb. FULL CARBON: extremely limited weight. Gives the wheel an extremely high level of lateral stiffness & greater reactivity. EXCLUSIVE PRESSING SYSTEM FOR THE RIM IN UNPAINTED CARBON: enables an extremely limited weight & a smooth surface free from imperfections. STRAIGHT-HEAD SPOKES IN STEEL: lightweight & greater reactivity. ALUMINIUM NIPPLES: make it possible to reduce the peripheral mass of the wheel to the minimum, thus increasing its reactivity. HUB BODY IN CARBON: provides a high level of lateral stiffness & reduces the weight to a minimum. FW BODY IN TITANIUM: reduces the weight of the wheel – increases reactivity. CUP/CONE