2006 Triumph Bonneville 0.8L Petrol · YN06 PXY

A 2006 Triumph Bonneville presenting this kind of MOT record is an unusual proposition. Across eight tests spanning from 2015 to 2025, every single examination has resulted in a clean pass with no advisories and no failures recorded, and the most recent assessment on 16 May 2025 carried forward that same defect-free outcome. This is a notably consistent track record over a full decade of testing. From an objective standpoint, the recorded DVSA information shows no flagged components, no recurring wear items, and no deterioration pattern across the cycle, brake, suspension, lighting, or exhaust categories that examiners monitor. The absence of any advisories is itself a data point worth noting, because examiners routinely flag minor defects such as tyre wear approaching the legal limit, minor oil weeping, perished rubber bushes, or slight corrosion on brake lines, and none of these appear in the history for this machine. The mileage profile, however, raises its own mechanical questions that the clean pass record cannot address. With 19,695 miles recorded against a 20-year vehicle age, this Bonneville has averaged roughly 985 miles annually, a very low figure that means the machine has spent the vast majority of its life either stationary or used only intermittently. The MOT history itself shows a four-year gap between the 2017 test and the 2021 test, consistent with either SORN periods or exemption from testing, which is permissible for this age of vehicle but reinforces the picture of limited use. Low annual mileage on a motorcycle of this vintage tends to shift the wear concern away from high-mileage consumables such as brake pads, chain and sprocket sets, and tyre tread, and towards items that deteriorate with age rather than use: fork oil degradation, internal corrosion in the fuel tank and carburettors, dried and cracked rubber seals throughout the braking and cooling systems, oxidation in electrical connectors, and stiffening of suspension bushes and linkages. Standing periods also bring the well-known issues of stale fuel, dried battery cells, and surface corrosion on steel components, all of which exist entirely outside what an MOT examination can detect. For a prospective buyer, the practical implications are that a roadworthy test pass is not the same as a mechanically confident machine, and the inspection should focus precisely on the components that mileage cannot reveal. On a test ride, pay close attention to the front fork action; any harshness, topping out, or stiction through the first part of the stroke would suggest degraded fork oil, which is a common age-related concern on parallel twins of this generation. Listen for a metallic rattle from the front end over broken surfaces, which can indicate worn headstock bearings, and check for any notch or irregularity when turning the bars from full lock to full lock. The braking system should be examined for seized caliper pistons or corroded pistons within the bores, a frequent finding on lightly used motorcycles where corrosion has had time to develop internally. Lift the fuel cap and inspect for rust flakes or varnish in the tank, check that the carburettors drain cleanly when the float bowls are opened, and verify that the choke and fast idle mechanism operate smoothly, as these are areas where standing time causes more harm than running time. The driveline and ancillaries also warrant specific attention. Rotate the rear wheel by hand and confirm the chain and sprockets are free of tight spots, excessive corrosion, or seized links, since a chain that has been left static in a damp environment can corrode internally even with low mileage. Examine the swinging arm pivot, rear shock linkage bearings, and the monoshack mounting hardware for surface rust and seized pivots, all of which are common on low-use classics and none of which would necessarily be picked up during an MOT. Check the electrical system comprehensively: confirm the battery holds charge under load, that the charging system output is within specification, and that all lighting, indicators, and instrument functions are consistent, as connectors oxidise over time regardless of use. Finally, inspect all rubber items, including the fork gaiters, dust seals, carburettor intake boots, fuel lines, and vacuum hoses, for perishing or cracking. Given the clean MOT history, this Bonneville has formally cleared every roadworthiness examination it has been presented for, but a careful physical inspection and a documented service history covering fluid changes, carburettor maintenance, and rubber component renewal would be the more relevant indicators of how this particular machine has been preserved during its long, low-mileage life.