The zenium vr disc the zenium vr disc features a lightweight alloy frame with a full carbon fork 105 11 speed groupset fulcrum racing sport disc wheelset and trp spyre mechanical disc brakes with vitus finishing kit if performance and value are your deciding factors the new zenium vr disc has it covered on all fronts vituss super light 6061 t6 triple butted alloy frameset with smooth welds has been optimised for power transfer and vertical compliance to combine the best of both worlds