Honda Dream 50R
Model History
In 1962, Honda stunned the racing world by displaying its first 50cc-class works machine, the RC110. A commercially available model of the RC110 was also introduced at the same time under the name CR110 Cub Racing, and its domestic sales started in June 1962.
The single-cylinder CR110 featured a high-tech gear-driven camshaft, DOHC, and four valves. This amazing little motorcycle had a 10:3.1 compression ratio and would rev to 13,500 rpm. It also employed a dry clutch and eight-speed gearbox.
A second racing version, designated the RC111, aimed specifically at competing at the Isle of Man. It revved to 16,000 rpm and could approach 90 mph.
Now the Dream 50R commemorates Honda's early racing history and the dream Mr. Honda had for international competition.
Features
Engine
- 49cc four-stroke engine produces 7 bhp at 13,500 rpm.
- HRC(r) racing parts include: camshaft, valve springs, low-friction cam chain, crankshaft and lightweight AC generator.
- Six-speed close-ratio transmission.
- Big-bore carburetor and special manifold for optimum power.
- Race-ready engine features oil drain bolt with hole for lockwire to comply with race regulations.
Chassis/Suspension
- Lightweight and strong steel frame.
- Weight-saving aluminum fenders front and rear.
- Aluminum oil catch tank.
- Showa(r) front and rear suspension are calibrated for the track to provide optimum handling and stability.
- Exhaust system features a one-piece expansion chamber and muffler.
Additional Features
- Tachometer capable of showing 18,000 rpm is directly mounted to frame.
- Front number plate and chainguard as standard equipment.
Product Brochure in PDF format
Specifications
Model:
AR02
Displacement: 49cc
Bore x Stroke: 40.0 x
39.6
Compression Ratio:
11.7:1
Max Power:
7 bhp
Carburetor:
20mm
Ignition:
CD
Clutch:
Wet multi-plate
Transmission:
Six-speed
Overall Length:
70.5 inches
Overall Width:
24.2 inches
Overall Height:
37.2 inches
Wheelbase:
47.0 inches
Dry Weight:
156.5 pounds
Fuel Capacity:
1.6 gallons
Brakes:
Single hydraulic disc front and rear
Tires
Front:
2.50 x 18
Rear:
2.50 x 18
Color:
Silver
Not street legal.
Comparison to Standard Dream 50
| Model No | Dream 50 Standard | Dream 50R |
| Model | A-AC15 | AR02 |
| Overall length (mm) | 1,830 | 1,790 |
| Overall width (mm) | 615 | 615 |
| Overall height (mm) | 945 | 945 |
| Wheel base (mm) | 1,195 | 1,195 |
| Dry weight (Kg) | 81 | 71 |
| Engine model | AC15E | AR02E |
| Displacement (cc) | 49 | 49 |
| BoreXStroke (mm) | 40.0 X 39.6 | 40.0X39.6 |
| Compression | 10 | 11.7 |
| Max.power | 4.11kw(5.6ps)/10,500rpm | 5.14kw(7.0ps)/13,500rpm |
| Max.torque | 4.11N・m(0.42kg-m)/8,500rpm | 4.41N・m(0.45kg-m)/10,500rpm |
| Carburetor | PC09 | PC20 |
| Ignition | CDI | CDI |
| fuel Capacity(L) | 6.2 | 6.2 |
| Clutch | Wet multi plate | Wet multi plate |
| Transmission | 5 speed | 6 speed |
| speed ratio | 4.437/3.583 | 4.437/3.583 |
| Frame | Diamond | Diamond |
| Brakes (FRNT) | (disk brake) | (disk brake) |
| (REAR) | (disk brake) | (disk brake) |
| Wheels (FRNT) | 2.50-18 45L | 2.50-18 45L |
| (REAR) | 2.50-18 45L | 2.50-18 45L |
| (FRNT) | (telescopic fork) | (telescopic fork) |
| Suspension (REAR) | (swingarm) | (swingarm) |
)
)
)