2017 Triumph Bonneville 0.9L Petrol · WA67 WFO

The Triumph Bonneville presents a stable and improving roadworthiness trend, culminating in a clean pass on 2 May 2025 at 5,155 miles with zero defects recorded. That result marks a clear improvement over the 2022 test, where the tester flagged a front tyre worn close to the legal limit at 5,035 miles. The subsequent two tests, in October 2023 and May 2025, both passed without advisories or failures, indicating the front tyre was replaced and no further defects have emerged. For a motorcycle of this age, the maintenance record is reassuringly consistent. The mileage profile is notably low. Across nine years, the odometer has advanced just 5,155 miles, averaging roughly 573 miles per year. The annual increments tell a similar story: 902 miles added between November 2020 and November 2021, 592 miles between 2021 and 2022, 62 miles between 2022 and 2023, and 58 miles between 2023 and 2025. The sharp drop in annual usage from late 2022 onward suggests the motorcycle has seen very light use or prolonged standing in recent years. That pattern reduces consumable wear but introduces its own risks. Long periods without use can lead to dried-out fork seals, corroded brake calipers, stale fuel degrading rubber lines and injector components, and surface corrosion on exposed metalwork. A buyer should focus the in-person inspection on components most affected by low-mileage, long-dwell storage. Check the brake calipers for seized pistons and the discs for uneven corrosion, especially on the rear where use is lighter. Examine the fork stanchions for pitting and the fork oil for milky discolouration, which would indicate moisture ingress during standing. Inspect the drive chain for tight spots and stiff links, as infrequent use and lack of lubrication accelerate uneven wear. The tyres deserve close scrutiny even though the 2022 advisory was resolved; low-mileage motorcycles frequently sit on the same contact patch, causing flat-spotting and sidewall perishing regardless of remaining tread depth. Structurally, the tubular steel frame and welds should be examined for surface rust, particularly around the headstock, swingarm pivot, and rear subframe mounts. Exhaust headers and the collector box are prone to internal condensation corrosion during cold starts followed by short rides. The fuel tank interior should be checked for rust if the bike has stood with a partial fill. Electrically, low-mileage use can cause connector corrosion and battery degradation, so a thorough test of the charging system, lighting circuits, and starter motor under load is advisable. The MOT record is clean and trending positively, but the usage pattern demands a careful physical inspection that goes beyond what any test certificate can reveal.