2009 Triumph Bonneville 0.9L Petrol · OU09 AFN

The most recent DVSA examination on 7 April 2026 resulted in a pass with no defects or advisories recorded, and this clean result follows directly on from similarly unblemished passes at 28 March 2025 and 12 April 2024. The overall maintenance trend therefore reads as stable and broadly positive, particularly given that the only significant issues in the recorded history relate to the rear brake pads and the exhaust silencer, both of which were addressed following the failure of 16 March 2022. The fact that the motorcycle has returned clean test outcomes across three consecutive examinations suggests that the remedial work carried out after that 2022 failure has been effective and that the vehicle has been maintained to a satisfactory roadworthy standard since. The recorded mileage of 10,143 miles on a 2009 machine equates to an annual average of approximately 597 miles, which is exceptionally low for a motorcycle of this vintage. This figure strongly implies prolonged periods of storage or very occasional leisure use, as the majority of bikes of this age and type would typically accumulate well in excess of 2,000 miles per year. Such low usage has clear mechanical implications: components designed to be exercised regularly, such as the brake calipers, brake discs, wheel and headstock bearings, and the chain and sprockets, are more vulnerable to corrosion, pitting, and seizure through standing. Equally, internal engine components can suffer from oil starvation upon first start-up after long lay-ups, and the fuel system may have developed varnish or stale fuel deposits within the carburettors if left undrained. Given this usage profile, a prospective buyer should prioritise a number of age- and storage-related checks before committing to purchase. The tyres warrant particular scrutiny for sidewall perishing and cracking, as rubber compounds degrade with calendar age regardless of tread depth, and the DOT date code on the sidewall should be reviewed to confirm the tyres are within a safe service life, typically no more than five years from manufacture. The braking system should be inspected for surface corrosion and pitting on the disc rotors, which is common on lightly used machines and can produce shudder under application until the pads bed back into the corroded surface, while the caliper pistons and sliding pins should be checked for free movement and any signs of binding. The 12V battery is highly likely to be of significant age and should be load tested, and if the original specification remains, replacement is advisable as a matter of course. Drive chain and sprocket condition should be examined for rust, stiff links, and uneven tooth profiles, and all rubber components including fork gaiters, dust seals, and any flexible hoses should be inspected for perishing. Finally, the buyer should satisfy themselves regarding time-based servicing items that are not directly recorded on an MOT. Engine oil and filter, gearbox oil, and final drive lubricant all degrade through oxidation and moisture absorption over calendar time, and the original service schedule specifies intervals based on either mileage or elapsed time, whichever comes first, meaning a 17-year-old machine will require fresh fluids regardless of odometer reading. The coolant, where fitted, and brake fluid are hygroscopic and should be renewed periodically, with brake fluid in particular susceptible to moisture ingress that lowers its boiling point and compromises stopping performance. The exhaust system, which was flagged on the 2022 test as emitting noise in excess of standard, should be carefully inspected for internal baffle corrosion and mounting integrity, and the buyer should listen on a test ride for any irregular exhaust note or blowing from joints. A thorough cold-start observation is also recommended to confirm that the engine fires promptly without excessive cranking, smokes excessively, or exhibits any untoward mechanical noises, as these can reveal the effects of long-term storage more readily than any steady-state running check.