2021 Triumph Speed Twin 1.2L Petrol · DG71 AHC

The most recent DVSA MOT test for the Triumph Speed Twin was conducted on 2025-11-21, resulting in a clean pass with no defects recorded. This follows a pattern of two previous MOTs in 2025, where the vehicle initially passed on 2025-03-08 with only an advisory for a slightly loose rear drive chain, before failing on the same test date due to a missing rear reflector. While the reflector issue was a passing requirement, the recurring advisory on the rear drive chain suggests a persistent but non-critical concern that warrants attention. The fact that the vehicle has not failed on any subsequent tests implies that the drive chain’s condition may not have worsened significantly since the last inspection, but the advisory remains a reminder of potential long-term wear risks, particularly if the vehicle is driven regularly or subjected to prolonged periods of high load. The recorded mileage of 2,571 miles for a vehicle aged five years represents an exceptionally low annual usage rate of approximately 514 miles per annum, which is notably below the average for a similarly aged Triumph, especially one with its performance-oriented twin-cylinder engine. Such low mileage could indicate either infrequent use, long periods of stationary storage, or a vehicle maintained in a location with minimal traffic. However, low mileage alone does not guarantee optimal mechanical condition, as prolonged idling or static exposure can accelerate wear on components like brakes, suspension, and fluid systems. For instance, standing for extended periods may lead to brake disc corrosion, caliper binding, or fluid degradation due to evaporation, while suspension elements such as coil springs or bushes can degrade from lack of dynamic loading. Additionally, the absence of recent high-mileage accumulation means consumables like oil, coolant, and brake fluid may not have been subjected to the same degree of stress as in a higher-mileage vehicle, but this also raises questions about whether these fluids have been replaced according to service intervals. Given the low mileage and clean MOT history with only one passing defect (the missing rear reflector), the buyer should conduct a thorough physical inspection focusing on areas prone to static-related degradation. Start with the brakes, checking for signs of corrosion on the discs and linings, or any unusual binding in the calipers, which could indicate prolonged standing. Inspect the suspension for any stiffness or play in the coil springs, bushings, or control arms, as these components can deteriorate silently over time. The rear drive chain advisory suggests that the chain may be slightly worn or stretched, which could lead to increased noise or vibration if not addressed. On a test drive, listen for a rhythmic clunking or rattling from the rear axle area, which could indicate chain elongation or improper tension. Additionally, verify the condition of the tyres, paying particular attention to the sidewall for any signs of cracking or perishing, which can compromise structural integrity and safety, even at low mileage. The battery should be checked for corrosion on terminals and tested for charge capacity, as low usage may not have cycled it sufficiently. Finally, given the vehicle’s age, consider a service history check to confirm that fluids such as oil, coolant, and brake fluid have been replaced according to the manufacturer’s recommendations, as these can degrade over time regardless of mileage. For fluid servicing, the Triumph Speed Twin’s owner’s manual or service schedule should dictate the appropriate intervals for oil changes, coolant flushes, and brake fluid replacements. Given the vehicle’s age and low mileage, the oil should be changed at the recommended interval, typically every 5,000 to 10,000 miles or annually, whichever comes first, to prevent sludge buildup and ensure engine longevity. Coolant should be replaced every two years or 60,000 miles to prevent corrosion and thermal breakdown, while brake fluid should be replaced every two years to maintain hydraulic effectiveness and prevent moisture absorption, which can lead to brake failure. If the vehicle has been stored for extended periods, a thorough fluid check and top-up may be necessary to ensure all systems are primed and functional. Lastly, the exhaust emissions system should be inspected for leaks or disconnections, as even low mileage can accumulate carbon deposits or wear in catalytic converters over time, potentially affecting emissions performance. A visual check of the exhaust manifold, catalytic converter, and oxygen sensors for corrosion or damage is advisable.