2014 Triumph Thunderbird 1.7L Petrol · DB59 BAD

The Triumph Thunderbird has demonstrated consistent roadworthiness over its MOT history, with the most recent test on 16 March 2026—just four months ago—confirming no defects and a clean pass. The absence of advisories or failures across all tests since March 2023 suggests the vehicle has been maintained at a basic level without any recurring mechanical issues. However, the duplicate entry for March 2024 (a simultaneous pass and fail at the same mileage) appears anomalous and warrants clarification, though it does not reflect on the vehicle’s current condition. The recorded mileage of 23,153 miles over nearly 12 years implies an average of just under 2,000 miles annually, which is unusually low for a motorcycle of this age. The largest gap in testing occurs between March 2023 (15,020 miles) and March 2024 (19,631 miles), a 4,611-mile span over a year—suggesting either prolonged storage or minimal use. The subsequent tests in 2024 and 2025 show steady mileage accumulation, but the overall pattern hints at periods of inactivity that could accelerate wear on seals, battery health, and fuel system components. Given the clean MOT record, the primary focus for an in-person inspection should centre on consumable items —tyres (for uneven wear or cracking), chain/sprocket (for stretch or corrosion), and brake pads (for thickness and uniformity). The lack of advisories does not preclude suspension degradation , particularly in the rear, where rubber bushes and coil springs may have dried out over periods of disuse. A thorough check of the exhaust system for leaks or rust penetration is also essential, as is verifying the electrical system for battery condition and proper function of lights and indicators, given the motorcycle’s age. The absence of structural corrosion advisories in past tests is reassuring, but a visual inspection of the frame, fuel tank, and undercarriage for hidden pitting should not be overlooked.