2019 Triumph Bonneville 1.2L Petrol · R26 GJP

The latest MOT test for the Triumph Bonneville, conducted on 2026-02-21, resulted in a pass, though it included two advisories that warrant careful consideration. The advisories regarding the rear tyre being worn close to the legal limit at 5.2.3(e) and the front brake pads nearing their minimum thickness at 1.1.13(a) indicate a pattern of tyre and brake wear that has persisted into this most recent inspection. Comparing this to the previous MOT history, the vehicle’s maintenance record remains stable, with no failures or critical defects recorded since 2023-12-02, but the recurring advisories suggest that the wear on tyres and brakes has not been fully addressed or is progressing at a rate that requires proactive attention. The fact that these advisories have appeared in three separate MOTs over the past two years points to either inadequate maintenance or consistent, higher-than-expected usage that accelerates component wear. The recorded mileage of 23,535 miles for a vehicle that is approximately seven years old represents a relatively low annual mileage of around 3,362 miles per year, which is notably below the average for a car of this age and model. Such low mileage can often reflect periods of prolonged inactivity, particularly if the vehicle was stored under conditions that minimised exposure to the elements, such as in a garage or with the engine running intermittently to prevent corrosion. However, it is also possible that the vehicle has been used sparingly, which could mean that consumables like brake pads, tyres, and suspension components have not experienced the same level of stress as a higher-mileage vehicle. The absence of significant mileage accumulation over the past seven years suggests that the wear observed in the MOT advisories may be more influenced by usage patterns rather than sheer distance travelled. Nonetheless, the consistent proximity of tyres and brake pads to legal limits raises questions about whether the vehicle has been driven in a manner that has accelerated wear, such as frequent stop-and-go traffic or aggressive braking. For a prospective buyer, the most critical areas to inspect during a physical examination and test drive are the tyres, brakes, and suspension, given the recurring advisories. The rear and front tyres being worn close to the legal limit necessitate a thorough check of their tread depth and overall condition, including for signs of uneven wear patterns that could indicate misalignment, poor alignment, or suspension issues. On a test drive, listen for unusual noises from the tyres, such as squealing or scraping, and observe the vehicle’s handling for any lateral movement or pulling, which might suggest alignment or steering component problems. The front brake pads being nearing their minimum thickness is a cause for concern, as this could lead to reduced braking performance and increased risk of failure, particularly under heavy braking. Inspect the brake discs for signs of glazing, warping, or corrosion, and listen for a grinding noise when applying the brakes, which would indicate that the pads may be worn to the metal and require immediate replacement. Additionally, check for any fluid leaks around the brake calipers and master cylinder, as this could signal hydraulic system issues or binding calipers that require servicing. Beyond the immediate advisories, the vehicle’s low annual mileage profile suggests that the buyer should focus on checks that are more relevant to its age and usage history. Given the Triumph Bonneville’s age and the potential for prolonged periods of inactivity, examine the tyres for signs of sidewall cracking or perishing, which can occur due to age-related degradation of the rubber compound. The 12V battery should be tested for its charge capacity and overall health, as prolonged disuse can lead to sulphation and reduced performance. Inspect the engine bay and undercarriage for signs of corrosion, particularly around the exhaust system, fuel lines, and electrical connections, as standing vehicles are prone to rust and oxidation. The fluid levels—particularly the engine oil, coolant, and brake fluid—should be checked, with a note taken of their age, as fluids degrade over time even when not used, and should be replaced according to the manufacturer’s recommended intervals, which for many fluids is typically every 2–3 years. Finally, verify that the service book or maintenance records have been updated, as this will provide a clear history of previous servicing and any scheduled maintenance that has been completed. If the service book is missing or incomplete, the buyer should request a full service history from the previous owner to ensure that critical intervals, such as timing belt replacement (if applicable) or suspension component servicing, have been attended to.