What is the engine displacement of the 1980 Honda CB 900 Custom?

The 1980 Honda CB 900 Custom has an engine displacement of 902.0 ccm (55.04 cubic inches).

1980 Honda CB 900 Custom Price, Specs, Review

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Review

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The 1980 Honda CB900 Custom is a unique machine, standing out with its ten-speed gearbox. This unusual transmission setup aimed to provide a wide range of gearing options, catering to both relaxed cruising and more spirited riding. Power comes from a 902cc inline-four engine, delivering a smooth and tractable powerband. The air-adjustable front suspension hints at the bike's focus on rider comfort and adaptability to varying load conditions. Ergonomically, the CB900 Custom offers a comfortable, upright riding position, typical of the era's standard motorcycles. This makes it suitable for longer rides and everyday commuting. The styling reflects the trends of the late 70s and early 80s, with a blend of chrome accents and a classic, understated design. While not a sportbike, the CB900 Custom provides a solid and stable ride, capable of handling a variety of road conditions. This motorcycle appeals to riders who appreciate vintage machines with distinctive features. Its ten-speed gearbox is a conversation starter, and the bike's overall reliability makes it a practical choice for those seeking a classic motorcycle experience. The CB900 Custom is a testament to Honda's engineering innovation and a reminder of a time when motorcycles were designed with versatility in mind.

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Pros (Advantages)

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✅ Why buy this bike?

• Powerful DOHC inline-four engine provides strong acceleration and good highway cruising capability for its era. • Classic UJM styling with chrome accents makes it a visually appealing and historically significant motorcycle. • Known for robust build quality and engine longevity if properly maintained, offering good long-term value. • Comfortable riding position and plush seat make it suitable for longer rides and two-up touring. • Hydraulic valve adjusters simplified maintenance compared to shim-under-bucket designs common at the time. • Relatively easy to find parts for due to its popularity and shared components with other CB models.

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Cons (Disadvantages)

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⚠️ Things to consider

• Heavy curb weight can make low-speed maneuvering challenging, especially for smaller riders. • Braking performance, while adequate for its time, feels dated compared to modern motorcycles. • Suspension, particularly the rear, can feel soft and underdamped, affecting handling on bumpy roads. • Fuel economy is not a strong suit, especially with spirited riding, due to its carbureted large-displacement engine. • Carburetor synchronization and tuning can be complex, requiring specific tools and expertise for optimal performance.

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License Class (EU)

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Rule of thumb: under 125cc / 15HP → A1, under 47HP → A2, above → A.

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Fuel Economy & Running Costs

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Estimated average for 902cc class: 35-50 mpg (5.0-7.0 L/100km)

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Insurance Class

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Insurance grouping for Honda CB 900 Custom (902cc):