Old Britts – Commando Clutch Plate Information
Download the complete PDF version using the green download button at the top right of this page for detailed Norton Commando clutch plate specifications, clutch setup information and tuning guidance. This technical article by Fred Eaton explains the differences between Norton Commando 750 and 850 clutch assemblies, including friction plates, plain plates, diaphragm springs and pressure plate configurations.
The guide includes clutch plate thickness measurements, Barnett versus factory plate comparisons, clutch pull adjustment procedures and practical workshop advice based on long-term Norton racing and road experience.
Detailed information is also provided on improving clutch action, reducing clutch slip and converting early four-plate clutch systems to the improved five-plate 850 setup for better durability and smoother operation.
Contents Include
- 750 and 850 clutch differences
- Factory and Barnett clutch plate comparisons
- Clutch plate thickness specifications
- Pressure plate information
- Diaphragm spring setup
- Clutch pull adjustment procedures
- Shim plate and stack height guidance
- Five plate clutch conversion information
- Workshop tuning and setup tips
- Real world clutch performance experiences
Supported Norton Models
- Norton Commando 750
- Norton Commando 850
- Norton MKIII Electric Start
- Norton Interstate
- Norton Roadster
- Norton Fastback
