Neutron plastic

Neutron is the premium all-round rim material used across MVP, Axiom and Streamline, and it is the blend most of those brands' molds launch in. It is moderately grippy, durable and middling in stiffness.

Because MVP and Axiom discs use the GYRO overmold, the plastic name describes the rim rather than the whole disc, so a Neutron MVP disc and a Neutron Streamline disc are built differently even though the rim material matches. Neutron holds its flight well and beats in gradually rather than suddenly.

Its relatives are described separately: Proton is the stiffer premium option, Electron the soft baseline, and Cosmic Neutron, Plasma, Fission and Eclipse are variants built on the same idea.