2009 Triumph Streetriple 0.7L Petrol · OU09 AEC

The most recent DVSA MOT test on the Triumph Street Triple, conducted on 2025-03-18, resulted in a pass, though it included two advisories that warrant careful attention. The presence of these advisories—specifically a stiff or notchy steering head bearing and a slightly loose drive chain—indicates that while the vehicle remains roadworthy, there are developing issues that could escalate without intervention. The absence of failures in the intervening MOT tests from 2019 to 2025 suggests a generally stable maintenance record, but the recurring advisories suggest that the vehicle has been subjected to conditions that have gradually compromised certain components. The fact that these advisories were not flagged as failures in prior tests implies they may not yet be critical, but their persistence demands proactive monitoring, particularly if the vehicle is driven regularly. The recorded mileage of 10,926 miles for a vehicle aged approximately 17 years is unusually low, averaging just 643 miles per year—a rate that is far below what would be expected for a high-performance motorcycle of this era, especially one designed for active use. Such low mileage often reflects periods of prolonged inactivity, storage, or infrequent riding, which can lead to specific wear patterns and issues distinct from those seen in high-mileage vehicles. For example, standing for extended periods can cause corrosion to develop on brake discs, calipers, and suspension components, leading to binding or reduced braking efficiency. Additionally, fluids like brake fluid and engine oil can degrade over time due to evaporation or contamination, even without significant mileage. The low usage rate also raises concerns about potential neglect of consumables such as tyres, fluids, and electrical components, which may have deteriorated silently over time. As a prospective buyer, the first area to inspect thoroughly is the steering system, particularly the steering head bearing and linkage. The advisory from the 2025 MOT indicates a stiff or notchy feel, which could stem from wear in the bearing or misalignment of the steering components. On a test drive, listen for any unusual clunking or rattling when turning, especially at low speeds, and check for excessive play or resistance in the steering wheel. If the bearing is severely worn, this could lead to steering instability or premature tire wear. Next, examine the drive chain, which the advisory notes as slightly loose. A loose chain can cause increased wear on the sprocket and chain guides, leading to premature failure if not addressed. Inspect the chain for excessive stretch, excessive noise during operation, or signs of wear on the chain guides. If the chain is loose, it should be tensioned or replaced promptly to prevent further damage to the drivetrain. Beyond mechanical checks, the vehicle’s age and low mileage make it critical to assess the physical condition of the tyres, fluids, and structural components that may have suffered from prolonged storage. Check the tyres for sidewall cracking or perishing, which can occur even without significant tread wear, particularly if the motorcycle has been stored in a damp or exposed environment. Inspect the brake system for signs of corrosion on the discs and calipers, which can cause binding or reduced braking performance. A visual inspection of the brake discs for uneven wear or corrosion, and a test of the braking action for firmness or shuddering, is essential. Additionally, verify the condition of the 12V battery, as prolonged disuse can lead to sulfation or electrical system degradation. Test the battery voltage with a multimeter and check for any signs of corrosion on the terminals. For fluids, consider replacing the engine oil and filter, as well as the brake fluid, if they have been stored for an extended period, due to the risk of degradation from age or moisture absorption. Finally, review the service history for any missing or overdue maintenance, such as valve adjustments, chain lubrication, or suspension servicing, which are particularly important for a motorcycle of this era. If the vehicle has been stored for long periods, a thorough inspection of the fuel system, including the fuel pump and injectors, is also advisable to prevent issues related to fuel degradation.