As is described here, Dymag has come up with a hybrid carbon rim/aluminum spoke wheel design in an attempt to lower costs. It's currently directed at the automotive world but could be used on motorcycles. They're trying to cut the cost in half.
Note however that Dymag has previously gone bankrupt with such schemes as did Starfire Systems and their ceramic rotors.
Note however that Dymag has previously gone bankrupt with such schemes as did Starfire Systems and their ceramic rotors.