Stage 1: Street, Drag, Drift, Road Race, Rallye, Pulling, Autocross

Features an integrally molded carbon kevlar-based, high performance organic lining that offers smooth engagement and excellent life. This lining has an integrally bonded steel backing for strength under high clamp loads and temperatures. The hub is double sprung or rigid (application dependant) with spring cover relieves for flexibility and heat treated components for strength and durability. Best for street and many track/off-road applications.

Stage 2: Street, Drag, Pulling, Autocross

Features segmented or full faced pure Kevlar disc with steel backing. This lining features excellent drivability like the stage 1, but offers slightly longer life and higher torque capacity. The hub is double sprung or rigid (application dependant) with spring cover relieves for flexibility and heat treated components for strength and durability. Best for street, drag, pulling and autocross.

Stage 2+: Street, Drag, Pulling, Autocross

Features a multi-friction disc in a full faced configuration with carbon semi-metallic on one side and Kevlar on the other. Bridging the gap between stage 2 and stage 3, the 2+ offers drivability and engagement quality characteristic of the stage 2, but with a 15-20% higher torque capacity. The hub is double sprung or rigid (application dependant) with spring cover relieves for flexibility and heat treated components for strength and durability. Great for street, drag, autocross, road racing, pulling, rallye and drift.

Stage 3: Street, Drag, Pulling, Autocross

Features a carbon semi-metallic 6 puck sprung hub disc that has been the leading puck clutch in drivability, life and torque capacity. This unit is designed for street and race cars that require an aggressive but streetable engagement and high torque capacity. The hub is double sprung or rigid (application dependant) with spring cover relieves for flexibility and heat treated components for strength and durability. Also available in 3 puck configuration. Great for street, drag, road racing, pulling, rallye and drift.

Stage 3+: Street, Drag, Pulling, Autocross

The flagship stage for a high powered street or race car that requires a manageable and friendly engagement, the stage 3+ features a carbon semi-metallic full faced material that offers unparalleled life, friction co-efficient and drivability characteristics in one single package. The hub is double sprung or rigid (application dependant) with spring cover relieves for flexibility and heat treated components for strength and durability. Great for street, drag, drift, autocross, road racing, pulling, rallye and drift.

Stage 4: Street, Drag, Pulling, Autocross

This unit is a solid hub version of the stage 3. The hub is solid 8-rivet and the assembly is heat treated for strength and durability. It is available in a 3, 4 or 6 puck configuration. Use the 3 puck for the lightest option or the 6 puck for the smoothest engagement. The 4 puck is a good compromise for both. Street drivable in 6 puck configuration, but not street friendly due to the rigid hub. Best for drag racing, road racing, pulling, rallye and drift.

Stage 5: Street, Drag, Pulling, Autocross

Features a full-metallic disc with the highest possible friction co-efficient. Street drivable but not street-friendly. The hub is solid 12-rivet and the assembly is heat treated for strength and durability. Best for extreme street and drag racing.

All

The Super Twin is for street and track use with extreme horsepower and torque (700-1500 ft lbs tq). offerring near-stock drivability, tremendous life expectancy, a no shimming/setup bolt-in install and maintenance free operation. With all billet construction, these units are smooth and quiet.Rebuild-able by SPEC or the end user and replacement components. The super twin is constructed of aircraft grade aluminum and high carbon billet steel milled to an industry leading .001 inch for perfect balance and actuation. Friction is provided by dampened, full-faced carbon graphite, Organic, fiber and full metallic options are available. Flywheel and track-spec hardware are included.

Street, Drag, Pulling, Autocross

Multi-disc clutch and flywheel assemblies for limited street, drag race and road race applications. The Mini Twin assemblies are available in different clutch disc and flywheel materials, clamp loads, disc configurations and diameters which are recommended based on the type of usage the vehicle demands. The units are rebuild-able by SPEC or the end user and replacement components or rebuild services are always available. Types of driving: limited street, drag, drift, road racing, time attack, pulling and rallye.

SPEC billet flywheels are manufactured and developed for specific driving environments and recommended based on how each car reacts to changes in rotating mass. SPEC flywheels are NOT a one-fits-all lightweight flywheel, though they can be used for an array of driving habits and racing/high performance applications. Manufactured from only the highest quality steel and aluminum, they are the only flywheels on the market manufactured to a .001 machine tolerance, guaranteeing a flat seating surface for the clutch and smooth rotational qualities for perfect balance and extended engine life.

IMPORTANT NOTE: Items on this page are for definition purposes only. These descriptions are to help explain the differences in the Stages available. Please note that your specific application may very. Not all kits come with bearings and may or may not come with a sprung hub.

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