2017 Harley Davidson PRO Street Breakout 1801 17 1.8L Petrol · AJ66 CBU

The 2017 Harley-Davidson Pro Street Breakout 1801 has achieved a clean MOT test outcome on 2026-09-01, marking its fourth consecutive pass since 2022, with no recorded defects. This consistency in recent assessments suggests a stable maintenance history, though the single advisory from 2023—exhaust noise classified under 8.1.1(a)—remains a notable point of attention. The absence of repeated failures or advisories over the past four years indicates that the vehicle has likely maintained adequate mechanical integrity, though the advisory prompts further investigation into the root cause of the exhaust-related issue. Without evidence of progressive deterioration or repeated MOT failures, the overall roadworthiness appears robust, though the advisory may warrant proactive attention to prevent potential emissions or structural concerns. The vehicle’s recorded mileage of 3,215 miles over approximately nine years equates to an annual usage rate of around 357 miles, which is notably low for its age. Such low mileage often correlates with periods of prolonged inactivity or infrequent use, which can lead to specific wear patterns and potential issues distinct from higher-mileage vehicles. For instance, standing for extended periods may cause brake discs to corrode or bind calipers due to moisture ingress, while the engine and drivetrain components may experience reduced lubrication efficiency. Additionally, fluids such as the coolant, transmission fluid, and brake fluid can degrade over time even without significant mileage, particularly if the vehicle has been stationary for long durations. The low mileage profile also raises questions about whether the vehicle has been subjected to rigorous use, which could accelerate wear on consumables like tyres, suspension components, and exhaust systems. Given the clean MOT history and low recorded mileage, the buyer should conduct a thorough physical inspection to address potential age-related and usage-specific concerns. Start with the tyres, checking for signs of sidewall cracking or perishing, which can weaken the structure and compromise safety, especially if the vehicle has been stationary for extended periods. Inspect the battery for signs of corrosion around terminals and test its charge capacity, as low-mileage vehicles can sometimes suffer from battery degradation due to prolonged disuse. The brakes should be examined for corrosion on the discs, binding calipers, or uneven wear patterns, which may indicate prolonged standing or previous misuse. Fluid levels and condition should be verified, with particular attention to the coolant, brake fluid, and transmission fluid, as these can degrade over time regardless of mileage. Additionally, the suspension should be checked for excessive play or clunking noises, which could signal worn bushes or springs, and the exhaust system should be inspected for leaks or excessive vibration, particularly in relation to the 2023 advisory. For the exhaust advisory from 2023, the buyer should listen for a high-pitched whining or rattling noise when the engine is running, especially at idle or under acceleration, as this may indicate a failing catalytic converter or exhaust manifold. A test drive should also reveal any backpressure issues, which could manifest as reduced acceleration or a rough idle. If the noise persists, a professional inspection of the exhaust system and emissions components is recommended to ensure compliance with emissions regulations and to prevent potential engine damage from excessive backpressure. Given the vehicle’s age and low mileage, it is prudent to schedule a maintenance check within the next six months to address the advisory and ensure all fluids are refreshed, including the brake fluid, which should be replaced every two years regardless of mileage due to its hygroscopic nature. This proactive approach will help mitigate any hidden wear and maintain the vehicle’s reliability for future use.