2017 Triumph Bonneville 1.2L Petrol · DC17 EER

The Triumph Bonneville presents as roadworthy with a stable maintenance trend. The most recent DVSA test on 19 September 2025 at 3,960 miles returned a pass with no defects recorded, continuing an unbroken run of clean results across every examination in the available history. The recorded mileage shows exceptionally light use for a 2017 machine. From the 21 May 2022 test at 1,851 miles, the bike climbed to 2,530 miles by 26 May 2023, then 3,382 miles at the 15 May 2024 test, reaching 3,960 miles by September 2025. That averages roughly 440 miles per year. The sparse, clean record gives no evidence of neglected consumables or deferred repairs, though long standing periods between rides remain a consideration the paper trail cannot confirm. A buyer should still inspect for corrosion on frame and exhaust mounting points, as low-mileage machines left unused often develop surface rust unseen by MOT testers. Check the suspension linkage and fork seals for weeping, and confirm brake calipers are free from binding after the long dormant intervals implied by the mileage gaps. Tyres and brake hoses demand physical scrutiny despite no advisories. Nine years of age with limited rotation can harden rubber and flat-spot treads. Verify chain tension and lubrication, and road-test to expose any drivetrain hesitation the static tests would not flag.