2018 Triumph Bonneville 1.2L Petrol · FN18 TCO

The Triumph Bonneville presents as roadworthy with a stable maintenance trend. The most recent test on 17 December 2025 at 4,497 miles returned a pass with no defects recorded, continuing an unbroken sequence of clean results across every examination in the available history. The mileage pattern shows extremely low use for an eight-year-old machine. Recorded distances rose from 3,155 miles at the 18 May 2022 test to 3,933 miles by 5 May 2023, then 4,338 miles on 17 May 2024, reaching 4,497 miles in December 2025. That averages roughly 562 miles per year. The DVSA data contains no gaps or sudden accumulation; every annual test appears logged with consistent, minimal increments. Such low throughput implies long standing periods rather than active wear on consumables. No advisories or failures appear in any entry, so the record gives no direct flag for suspension bushes, brake discs, calipers, or structural corrosion. A buyer should still inspect the machine in person for fluid degradation, tyre perishing from age rather than tread wear, and seized linkages caused by inactivity. The clean history suggests previous owners kept basic statutory compliance but offers no evidence of proactive mechanical care beyond the minimum test standard. Given the sparse and fault-free record, the strongest caveat is what the MOT cannot show. Standing storage at this mileage risks condensation in the crankcase, flat-spotted tyres, and stiffened fork seals. A pre-purchase inspection should prioritise cold-start behaviour, brake binding after release, and underside corrosion invisible to the annual test.