| MODEL | HONDA RCB 1000 ENDURANCE RACER 1976 - 1977 |
| Year | 1976 - 1977 |
| Engine Type | Four stroke, inline four cylinder, DOHC, 4 valves per cylinder (based on CB750 Four) |
| Displacement / Capacity | 941.3 cc |
| Bore X Stroke | 68 x 64.8 mm |
| Compression Ratio | 11.0:1 |
| Cooling System | — |
| Max Power | 115 bhp @ 9500 rpm |
| Max Torque | 10.2 kgf-m @ 8500 rpm |
| Ignition | — |
| Induction | 4 x 34 mm Keihin CV carburettors, magnesium bodies |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump, 7 L oil, oil cooler |
| Gear Box | 5 Speed |
| Clutch | — |
| Final Drive | — |
| CHASSIS SPECS | |
| Frame | Steel tubular |
| Front Suspension | Telescopic fork |
| Rear Suspension | Twin shock absorbers |
| Front Brakes | Dual disc |
| Rear Brakes | Single disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 187 kg |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.25/4.00-18 |
| Rear Tyre | 3.50/5.75-18 |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | — |
The RCB was Honda's works endurance racer of the late 1970s, built on the CB750 Four but with a new twin-cam, 16-valve head, dry-sump lubrication and capacity taken out to around 941 cc. It ran in a conventional tubular frame and was the first bike to use Honda's Comstar wheels. Its dominance of the European endurance championship under the rules for modified production machines made the series largely one-sided.
