What is the engine displacement of the Yamaha B?

The Yamaha B has an engine displacement of 72.0 ccm (4.39 cubic inches).

How much horsepower does the Yamaha B have?

The Yamaha B produces 4.9 HP (3.6 kW )) of power.

What is the top speed of the Yamaha B?

The Yamaha B has a top speed of 91.0 km/h (56.5 mph).

How much does the Yamaha B weigh?

The Yamaha B has a dry weight of 59.0 kg (130.0 pounds).

Yamaha B Price, Specs, Review

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Review

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The 1975 Yamaha GT80 B is a vintage two-stroke motorcycle, representing a simpler era of motorcycling. Its 72cc engine produces 4.9 HP and 6.1 Nm of torque, offering modest performance typical of its time. Paired with a 4-speed gearbox, it provides a direct and engaging riding experience. Weighing only 59 kg (130 lbs), it's incredibly lightweight and easy to handle. The GT80 B's design is classic and minimalist, reflecting the style of 1970s motorcycles. The fuel tank holds 4.92 liters (1.3 US gallons). It has a top speed of 91 km/h (56.5 mph). The front suspension utilizes inverted forks, which were relatively uncommon for motorcycles of this size and age. The front brake is an expanding drum brake, typical for motorcycles of this era. This motorcycle is targeted towards vintage motorcycle enthusiasts, collectors, and those who appreciate the simplicity and charm of classic two-stroke machines. Its lightweight design and easy handling make it a fun and engaging ride for short trips and vintage motorcycle events. The GT80 B offers a nostalgic glimpse into the past of motorcycling.

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Pros (Advantages)

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✅ Why buy this bike?

• Extremely lightweight, making it incredibly easy to maneuver through congested city streets and tight spaces. • Exceptional fuel economy due to its small engine size, significantly reducing running costs for daily commutes. • Low seat height and manageable weight make it ideal for new riders or those seeking an approachable urban transport. • Simple mechanicals translate to lower maintenance costs and easier DIY repairs, perfect for budget-conscious owners. • Compact dimensions allow for easy parking in crowded areas where larger bikes struggle to find a spot. • Nimble handling makes it a joy for quick errands and navigating stop-and-go traffic with minimal effort.

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Cons (Disadvantages)

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⚠️ Things to consider

• Limited top speed and acceleration make highway travel stressful and potentially unsafe due to lack of power. • Small engine struggles with hills, especially with a passenger or heavy luggage, impacting performance. • Lack of advanced features and technology compared to larger, more modern motorcycles, offering a basic ride. • Minimal wind protection makes longer rides uncomfortable, exposing the rider to the elements. • Not suitable for two-up riding on anything but the shortest distances due to power and comfort limitations.

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License Class (EU)

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The Yamaha B, with its 72 cc engine and 5 HP, qualifies for an A1 license. Riders 16+ can ride it.

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Fuel Economy & Running Costs

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Estimated average for 72cc class: 75-100 mpg (2.5-3.5 L/100km)

⛽ Tank: 4.92 litres (1.30 US gallons)

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Insurance Class

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