Suzuki Mini CRO 50 (CM50)
1975—1977

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Launched in 1975, the Suzuki Mini CRO 50 (model code CM50) was a small off-road bike with a black-painted 49cc two-stroke single cylinder rotary disc valve engine, a long stroke Ceriani type front fork, twin shock/coil spring rear suspension, down-up exhaust pipe, drum brakes front and rear and equipped with small-diameter block pattern tires. The model name derived from ”mini motorcrosser”. The model was released short after the Suzuki Mini CRO 75 (CM75) and used the same tubular frame, suspension and wheels as its big brother. The models were practically identical, apart from the engine and transmission. The Mini CRO 50 had a five-speed return transmission while the Mini CRO 75 transmission had four speeds. Suzuki had already a 50cc off-road bike in its lineup, the Hustler 50 (TS50). The Mini CRO 50 had smaller wheels and its engine delivered less peak power than the Hustler 50. The Mini CRO had 16-inch wheel at the front and 14-inch rear wheel, while the Hustler had 17-inch wheels front and rear. The Mini CRO engine delivered 5 hp peak power, the Hustler pekaed at 6 hp. Both 50 and 75 versions of the Mini CRO were discontinued after only three years on the market.

1977 Suzuki year code: M

The 1975 Suzuki Mini CRO 50 was offered in two colors, Red and Yellow. At first, the Mini CRO had motocross-type high mount front fender, that was changed to a low mount fender, more suitable for riding on the streets.

1975 Suzuki Mini CRO 50, Red

1975 Suzuki CM 50 / Mini CRO 50 Overall Length: 1 835 mm (72.2 in) Seat Height: 760 mm (29.9 in) Overall Height: 975 mm (38.4 in) Ground Clearance: 145 mm (5.7 in) Wheelbase: 1 190 mm (46.9 in) Dry Weight: 79 kg (174 lbs) Engine: 49 cc air-cooled aluminum 1-cylinder 2-stroke, rotary disc valve. 5 hp (3.68 kW) @ 8 500 rpm, 4.41 Nm (0.45 kg-m) @ 7 500 rpm Here's even larger picture.

1976 Suzuki year code: A

The 1976 Suzuki Mini CRO 50 was similar to the 1975 model apart from the front fender. The specifications were unchanged.

1976 Suzuki Mini CRO 50, Red

1976 Suzuki CM 50 / Mini CRO 50 Overall Length: 1 835 mm (72.2 in) Seat Height: 760 mm (29.9 in) Overall Height: 975 mm (38.4 in) Ground Clearance: 145 mm (5.7 in) Wheelbase: 1 190 mm (46.9 in) Dry Weight: 79 kg (174 lbs) Engine: 49 cc air-cooled aluminum 1-cylinder 2-stroke, rotary disc valve. 5 hp (3.68 kW) @ 8 500 rpm, 4.41 Nm (0.45 kg-m) @ 7 500 rpm Click on the image for larger format.

1977 Suzuki year code: B

Unchanged model. Both Mini CRO models were discontinued after only three years on the market. The Mini CRO 50 was replaced by the Mini Tan (OM50) model.

1975–1977 Suzuki Mini CRO 50 specifications (Japan) Model code: CM50 Overall Length: 1 835 mm (72.2 in) Overall Width: 760 mm (29.9 in) Overall Height: 975 mm (38.4 in) Seat Height: N/N Wheelbase: 1 190 mm (46.9 in) Ground Clearance: 145 mm (5.7 in) Dry Weight: 79 kg (174 lbs) Engine model: TS50 Engine type: Air-cooled 1-cylinder 2-stroke, rotary disc valve Cylinder displacement: 49 cc Bore x Stroke: 41 x 37.8 mm (1.614 x 1.488 in) Compression ratio: 6.7 :1 Maximum power: 5 hp (3.68 kW) @ 8 500 rpm Maximum torque 4.41 Nm (0.45 kg-m) @ 7 500 rpm Fuel economy: 80 km/l at 30 km/h Carburetor: VM16SC Starter method: Kick Ignition method: magnet type, battery Battery model: 6N4-2A Battery capacity: 6V 4Ah Lubrication method: CCI (separate Lubrication) Lubricating oil amount: 1.2 liter Fuel tank capacity: 4.5 liter Clutch type: Wet multi-plate, coil spring Transmission type: 5-speed content mesh, return type Gear ratios: 3.665 / 2.132 / 1.577 / 1.279 /1.070 Primary reduction ratio: 3.842 Secondary reduction ratio: 2.600 Power transmission: chain Frame type: Pipe backbone Front suspension: Long stroke telescopic fork Rear suspension: Swing arm, twin shocks Front brake type: Mechanical leading drum brake Rear brake type: Mechanical leading drum brake Front tire size: 2.50-16-4PR Front wheel width: 1.4" Rear tire size: 3.00-14-4PR Rear wheel width: 1.6" Caster: 26°00' Trail: 70 mm (2.76 in) Steering angle: 43° Minimum turning radius: 2.0 m (6.56 feet) Recommended CM50 price in Japan: 1975: 96,000 Yen 1976: 98,000 Yen 1977: 105,000 Yen

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