Consider upgrading your supercharger system to our new 30mm COG belt and pulley system that is 57% stronger than our previous generation 20mm kits.
Kraftwerks Replacement Belt for the Double-Sided Ribbed Belt found in the 06-15 Miata Supercharger Kit.
Supercharger belt replacement is difficult to put on a time/mileage-based schedule due to the wide range of use these kits see. Kraftwerks recommends regular inspection of the belt, the belt's tension, and the drive pulley's ware surface for the longest possible service life that is built into every belt we offer. Remember, when in doubt... replace!!
Factors:
Proper/ Improper Tension
Alignment/ Misalignment
Temperature Extremes
Environmental Factors - Dirt, Dust, and/ or Debris
Failing Tensioner/ Idler Pulley(s)
Worn Sprockets/ Drive Pulley(s)