Used Harley-Davidson Fat Boy Motorbike for Sale in the UK

Reviewed by the Carslink.ai editorial team. Last updated 30 March 2026.

0 Harley-Davidson Fat Boy motorbikes available from independent UK dealers on Carslink.ai.

The Harley-Davidson Fat Boy needs little introduction. From its iconic appearance in 'Terminator 2' to its unmistakable presence on the open road, this cruiser embodies the spirit of American motorcycling. Renowned for its distinctive solid disc wheels, beefy twin-cylinder engine, and comfortable, laid-back riding position, the Fat Boy remains a hugely desirable used purchase in the UK. But what should you look for when considering buying one of these legendary machines?

Used Harley Davidson Fat Boy Price Guide (UK 2025/26)

Used Fat Boy prices vary significantly based on age, mileage, condition, and optional extras. Early carburetted models are often more affordable but require more specific maintenance. Later models with the Milwaukee-Eight engine command higher prices.

Key Features & Specifications

• Engine Size: Historically 1340cc (Evolution), 1450cc, 1584cc, 1690cc (Twin Cam), and currently 1745cc (107 cui) or 1868cc (114 cui) (Milwaukee-Eight).
• Category: Cruiser / Softail.
• Fuel Type: Petrol.
• Transmission: 5-speed (earlier models) or 6-speed manual.
• Wet Weight: Typically around 300-330 kg depending on the generation and engine.
• Seat Height: Approximately 670-690mm.

What to Look For When Buying Used

• Service History: Crucial for Harleys. Look for evidence of regular oil changes and major service intervals (e.g., 8,000 miles or annually for older models, 5,000 miles/annually for Milwaukee-Eight).
• Engine Noises: Listen for excessive top-end noise (tappets) on older Twin Cam models, which can indicate worn cam chain tensioners (a common failure point before hydraulic tensioners were introduced). Milwaukee-Eight engines are generally robust.
• Rust and Chrome Condition: Inspect fenders, exhaust, and frame for rust, especially under the seat and around welds. Chrome pitting is common but excessive flaking can be costly to remedy.
• Electrics: Check all lights, indicators, and the horn. Intermittent electrical faults can be notoriously difficult to diagnose.
• Tyres: Due to the bike's weight and power, check for even wear and adequate tread depth. Genuine Harley-Davidson branded tyres (Dunlop, Michelin) are often preferred.
• Modifications: Many Harleys are customised. Check if modifications (exhausts, air filters, fuelling modules) have been done professionally and legally for UK roads. Aftermarket exhausts may not be ULEZ compliant depending on the catalyst status.

Running Costs & Insurance

• Insurance Group: Typically in the higher brackets given their size, value, and engine capacity. Expect Group 14-16 for most models (out of 17 for bikes). Factors like age, location, and riding experience heavily influence premiums.
• Fuel Economy: Expect around 35-45 mpg (Imperial) depending on the engine and riding style. Less efficient than smaller bikes.
• Servicing Costs: Franchise dealer servicing can be expensive (£300-£600+ for major services). Independent Harley specialists often provide more competitive rates. Parts can be pricey.
• ULEZ (Ultra Low Emission Zone): Most Harley-Davidson Fat Boy models registered before 2007 will not be ULEZ compliant in London. Later models (typically Euro 3 onwards, registered 2007+) are generally compliant. Always check the specific bike’s registration on the TfL website.

Is the Harley Davidson Fat Boy Right For You?

The Fat Boy is ideal for riders who value a distinctive style, comfortable cruising, and the iconic Harley-Davidson rumble. It’s not a sports bike; handling is relaxed, and ground clearance is limited. It's best suited for:

• Leisurely rides and touring.
• Riders seeking a strong visual statement.
• Those who appreciate the heritage and customisation potential of Harley-Davidson.

Alternatives to consider: Indian Chief, Kawasaki Vulcan 900 Custom, Yamaha XV1900 Midnight Star.

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