Engine:
- The Mach 1 670 is powered by a 669cc liquid-cooled Rotax engine, while the Formula SS 670 is powered by a 669cc liquid-cooled Yamaha-built Genesis engine. Both engines are two-stroke, triple-cylinder engines.
- The Mach 1 670's engine produces 115 horsepower, while the Formula SS 670's engine produces 123 horsepower.
- The Mach 1 670's engine is carbureted, while the Formula SS 670's engine is fuel-injected.
Chassis:
- The Mach 1 670 has a steel chassis, while the Formula SS 670 has an aluminum chassis.
- The Mach 1 670's chassis is shorter and lighter than the Formula SS 670's chassis.
Suspension:
- The Mach 1 670 has a single-shock front suspension and a single-shock rear suspension.
- The Formula SS 670 has a dual-shock front suspension and a dual-shock rear suspension.
Brakes:
- The Mach 1 670 has a single-disc front brake and a single-disc rear brake.
- The Formula SS 670 has a dual-disc front brake and a single-disc rear brake.
Other Features:
- The Mach 1 670 has a thumb-activated throttle, while the Formula SS 670 has a twist-activated throttle.
- The Mach 1 670 has a digital instrument cluster, while the Formula SS 670 has an analog instrument cluster.
- The Mach 1 670 comes in a variety of colors, while the Formula SS 670 only comes in black.