2021 KTM 1290 Superduke R 21 1.3L Petrol · LF71 ZZL

A recurring advisory concerning an excessively noisy exhaust system has appeared on both recorded DVSA tests for this 2021 KTM 1290 SUPERDUKE R, flagging the same item under inspection reference 8.1.1 (a) on 4 December 2025 and 2 January 2025. While neither test resulted in a failure, the persistence of this single defect across consecutive examinations suggests an underlying issue with the exhaust that has not been rectified between tests, and warrants particular attention during any pre-purchase evaluation. The vehicle has passed both MOT assessments on record, but the pattern indicates a developing condition rather than a one-off observation, and the lack of remediation raises a question about whether the noise level has simply not yet crossed the failure threshold or whether further deterioration may be imminent. With only two tests logged, the overall sample size remains limited, so any broader conclusions about long-term roadworthiness must remain cautious. Mileage accumulation on this motorcycle stands at 18,335 miles across approximately five years, equating to an annual usage rate of around 3,667 miles per year. This figure sits at the lower end of typical usage for a high-performance machine of this type, and reflects either limited riding activity or extended periods of storage between outings. Lower annual mileage on a performance motorcycle can reduce wear on consumables such as brake pads, tyres, and drivetrain components, but it also introduces separate concerns related to prolonged standing, including potential fluid degradation, corrosion on fasteners and electrical contacts, and drying or cracking of rubber components such as hoses, suspension seals, and drive belts or chains. Given that only two MOT tests are present in the record, with the first dated January 2025 and the second in December 2025, the absence of earlier test data means the full picture of mechanical condition prior to this period cannot be verified through DVSA records alone. The exhaust advisory merits focused physical inspection, as a noisy exhaust on a V-twin performance motorcycle typically points to a degraded gasket joint, a cracked header pipe, a failing mounting bracket, or internal baffle deterioration within the silencer. On a test ride, listen for any irregular popping, rattling, or metallic resonance that increases with revs or under load, and inspect the header-to-cylinder joints and mid-pipe connections for sooting, which would indicate a compromised seal. Check that the exhaust mounting rubbers and springs are intact and not perished, as collapsed mountings can cause additional stress on the joints. Given that this is a 1290 Super Duke R, which produces substantial exhaust pulse pressure, any pre-existing weakness in sealing or mounting is likely to escalate rather than stabilise over time. Beyond the recorded advisory, the low annual mileage profile should prompt careful checks of items that suffer from disuse rather than wear. Inspect the chain and sprockets for surface corrosion and stiff links, particularly if the motorcycle has been stored in damp conditions, and verify that the chain adjusters are correctly positioned to reflect current tension rather than a seized ratchet. Examine the brake discs for any signs of surface rust that may not have been cleaned off through regular riding, and confirm that the calipers release cleanly without binding. Tyres of a 2021 manufacture date may show age-related sidewall cracking despite adequate tread depth, and should be examined closely regardless of MOT pass status. Finally, given that the motorcycle has covered relatively few miles per year, confirm that any required servicing intervals have been observed, as a low-mileage vehicle can easily fall outside service schedules based on time elapsed rather than distance covered.