Mineral Speed Additive Waxes continue to win races, perform excellent and take over traditional race wax formulas. X-Wax is formulated with our proprietary M3 formulas for maximum speed and durability. There is nothing like it available. The 114g X-Wax bars use a two bar mixing system. Add as little or no speed additive as you wish. We recommend a 50/50 mix using the iron to melt bars at the same time. The M3 additives are extremely durable and improve glide greatly in all conditions.