Colleda 125SK
1962

I have tried to tell the Suzuki Colleda 125 SK model history on this page as I know it. I would be grateful of any contributions — sales brochures, magazine ads, magazine articles, pictures, specs, facts, corrections etc. Please scan the material in JPEG format (large enough that all the details are visible) and send them to me. Please tell me the source and the publication date if possible. If you send me pictures of your own bike, please follow these instructions.

1962 Colleda 125SK, Black with Chrome decorations

The Colleda 125SK, launched by Suzuki in 1962, replaced the Suzuki models Colleda Seltwin (1959) and the Colleda Seltwin SB-2 (1960–1961). It had the now familiar Suzuki ”S” badge on the fuel tank and a smaller one on the engine side covers. The SJK brand name was no longer used when advertising Suzuki bikes in the sixties. The Colleda 125SK was a beautiful bike with lots of shiny chrome paired with glossy black painted fenders, and frame. The standard version, made for the domestic customers, had a single seat and a sturdy bagage holder behind it. The bike was advertised as a high-performance motorcycle ideal for both work and leisure activities. The 125SK was launched together with the similary designed 125SL on the same chassi. Both models had 4-speed rotary type transmission with similar gearing and electric and a kick starters. The sportier 125SK had a air-cooled twin cylinder 125cc 2-stroke with both electric and a kick starter. An engine with two cylinders was considered as quite sporty at the time. It generated maximum horsepower of 11.5 PS giving the 125SK a top speed of 115 km/h (71.5 mph). The frame was an underbone type and made of pressed steel. The suspension was the modern type with with oil-damping shock absorbers both front and rear that delivered reasonable comfortable cushioning performance, even on Japanese roads that could be quite rough at their places. Modified scrambler style models also performed well in clubman races throughout the country. The Colleda 125SK was a short-lived model that was replaced by the Colleda 125 S30 (1963–1964), Colleda 125 S30-2 (1965–1966) and Colleda 125 S30-3 (1967).

Road trip. A photo of the siblings 125SK and 125SL, published in a combined 125SK/125SL sales brochure

1962 Colleda 125 SK Overall Length: 1 950 mm (76.8 in) Overall Width: 675 mm (26.6 in) Overall Height: 932 mm (36.7 in) Wheelbase: 1 290 mm (50.8 in) Ground Clearance: 130 mm (5.1 in) Dry Weight: 112 kg (247 lbs) Engine: Air-cooled 124 cc parallel twin, 2-stroke. 11.5 hp (8.46 kW) @ 8 000 rpm, 10.8 Nm (1.1 kg-m) @ 6 000 rpm. 4 speeds Click on the image for larger format. Here's more Colleda info.

1962 Colleda 125 SK Overall Length: 1 950 mm (76.8 in) Overall Width: 675 mm (26.6 in) Overall Height: 932 mm (36.7 in) Wheelbase: 1 290 mm (50.8 in) Dry Weight: 112 kg (247 lbs) Top Speed: 115 km/h (49.7 mph) Engine: Air-cooled 124 cc parallel twin, 2-stroke. 11.5 hp (8.46 kW) @ 8 000 rpm, 10.8 Nm (1.1 kg-m) @ 6 000 rpm. 4 speeds Here's even larger picture. Here's more Colleda info.

1962 Colleda 125SK specifications (Japan) Model: SK Overall Length: 1 950 mm (76.8 in) Overall Width: 675 mm (26.6 in) Overall Height: 932 mm (36.7 in) Wheelbase: 1 290 mm (50.8 in) Ground Clearance: 130 mm (5.1 in) Dry Weight: 112 kg (247 lbs) Engine model: SK Engine: Air-cooled 124 cc 1-cylinder 2-stroke Peak power: 8.0 hp (5.88 kW) @ 6 000 rpm Maximum torque: 10.8 Nm (1.1 kg-m) @ 4 000 rpm Fuel consumption: 65 km/liter (at 40 km/h constant speed) Top Speed: 115 km/h (49.7 mph) Bore x stroke: 52 x 58 mm (2.047 x 2.283 in) Compression ratio: 7.0 Carburetor: VM17SC Starting system: Electric and kick starter Ignition system: Battery Fuel/lubricant mixture: pre-mix Lubricating oil capacity: 1.2 liter Fuel tank capacity: 8.5 liter Clutch type: Wet multi-plate Transmission type: Constant mesh, 4 speeds, rotary type Gear ratios: 2.540 / 1.560 / 1.140 / 0.880 Primary reduction ratio: 3.650 Secondary reduction ratio: 2.710 Frame type: Pressed steel plate, back bone Caster: 28°00′ Trail: 85 mm (3.346 in) Brake type (front): Internal expansion, mechanical Brake type (rear): Internal expansion, mechanical Front tyre: 3.00-16-4P Rear tyre: 3.00-16-4P Steering angle left to right: 45° Retail price in Japan (1962): 138,000 yen

It's not easy to tell the Colleda models 125SK and 125SK apart if you don't see the cylinders clearly. It's much easier if you see the left side of the bike. The Twin cylinder 125SK has an exhaust pipe on both sides of the motorcycle, the 125SL has only one pipe on the right side.

More: SJK (Suzuki Jidosha Kogyo) and Colleda models

More: All Suzuki models


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