🟠 MPI-D3-15 The D3, the next evolution of our popular D2 model, is the pinnacle of dirt wheels. The improved outer includes part textured polyurethane and part extreme grip RG material. These advancements mean a firmer grip preventing fatigue and facilitating one-handed usage. The legendary donnyschatz helped us develop this line of wheels, and you can see it on the defending cbnationals champ logan_seavey 's car! #iSpyMPI #mpidifference #dirttrack #dirttrackracing #dirtracing #dirtwheel