| | - 4-Puck Sprung Hub Race Disc (G4)
- Recommended for Road Racing
- Increased Torque Capacity and Spline Life
- Good Durability
- Quiet Operation, Reduced Driveline Shock
- Very Harsh Engagement and Chatter
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- 4-Puck Solid Hub Race Disc (R4)
- Recommended for Drag and Road Racing - Not For Street
- Increased Torque Capacity
- Fastest Shifts, Low Inertia
- Good Durability but Shortened Spline Life
- Harsh Engagement and Chatter
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