FuelCell Super Spikes New Balance is at the top of their game in developing super spikes for elite athletes. The MD-X is best suited for events from 800m to 5000m, and the SD-X is for events from 100m to 400m. You'll get a carbon plate for high energy return. Plus, New Balance ditched the bulky spike wells and individual screw-in spikes and upgraded to titanium spikes that are cemented directly on the spike plate which saves valuable weight and allows these spikes to have as much FuelCell foam as legally possible. |