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Classic · 1978

175 Trail

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MotoLibrary Score
37 /100 Commuter
Power
15 HP
Top Speed
100 km/h
Engine
172 ccm

1978 CZ 175 Trail Technical Analysis & Specification Breakdown

At the heart of the 1978 CZ 175 Trail classic motorcycle, CZ pairs a 172 cc (10.5 cu in) air-cooled single cylinder, two-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 15 HP (10.9 kW) at 5,600 rpm, transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 87.2 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the 175 Trail measures 128 kg (282 lbs) wet (curb), translating to a power-to-weight ratio of 0.12 HP/kg (8.53 kg per horsepower). The 11-liter (2.9 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 100 km/h (62 mph).

Within MotoLibrary's CZ archive, this model family spans 3 indexed model years from 1976 to 1978, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
87.2 HP/L
Power-to-Weight
0.12 HP/kg (8.53 kg/HP)
Engine
Displacement 172.0 ccm (10.50 cubic inches)
Engine Type Single cylinder, two-stroke
Engine Details Single cylinder, two-stroke
Power 15.0 HP (10.9 kW)) @ 5600 RPM
Compression 8.7:1
Bore x Stroke 58.0 x 65.0 mm (2.3 x 2.6 inches)
Fuel Control Port control
Cooling Air
Transmission
Gearbox 4-speed
Final Drive Chain (final drive)
Performance
Top Speed 100.0 km/h (62.1 mph)
Wheels & Brakes
Front Tyre 2.75-21
Rear Tyre 3.50-18
Front Brakes Expanding brake
Rear Brakes Expanding brake
Dimensions & Weight
Weight incl. 128.0 kg (282.2 pounds)
Fuel Capacity 11.00 litres (2.91 US gallons)
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Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
🏍️
Best For
General Purpose
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