2010 Kawasaki KLX125 0.1L Petrol · YP60 YPO

A pattern of rear suspension defects is the defining mechanical story of this 2010 Kawasaki KLX125 across its six recorded MOT tests spanning 2021 to 2026. The most recent test on 19 June 2026 returned a clean pass with no defects recorded, and the 2025 retest was also clear, suggesting the rear end issues that produced three separate defect categories in 2021 and 2023 may have been resolved. However, the cluster of failures is worth weighing carefully. On 25 April 2023 the bike failed on a serious rear shock absorber fluid leak, an excessively worn bush at the top of the mono shock, a headlamp aim defect, and a missing rear reflector, while the earlier 2021 test recorded two dangerous defects relating to a modified rear suspension component rendering it inoperative and a missing rear wheel fixing. Combined, these records show the rear suspension assembly has been the focal point of multiple official failures, with shock bushes, shock sealing, and adjacent suspension-related fastening integrity all called into question at different points. The recorded mileage of 9,698 miles across approximately sixteen years equates to an average accumulation of roughly 606 miles per year, which is exceptionally low for a motorcycle and points to either light recreational use or extended periods of standing. The MOT record itself covers a span from 2021 to 2026, but no tests are recorded for 2022, which creates a one-year gap that may reflect either off-road storage or a change in testing eligibility. The mileage progression between tests is consistent with very gentle use rather than commuter riding, and this has a direct bearing on what a buyer should expect mechanically. Low-mileage motorcycles commonly present with dry or perished rubber bushes, hardened suspension linkages, stale fuel, and seized brake calipers from lack of use, even where the recorded mileage is not high. The fact that suspension bushes and shock absorber sealing have produced official failures in this history is consistent with that low-use wear profile. For a prospective buyer, the rear suspension area should be the priority focus during any inspection, given the specific defect history. The 2023 failure cited a fluid leak from the rear shock absorber, which on a test ride typically presents as a visible damp patch on the shock body or a continuous oily film rather than a dry dusty surface, alongside a harsher ride quality over bumps as damping performance is lost. The worn top bush on the mono shock noted in the same test and the excessively worn rear lower shock absorber bush recorded in 2025 both relate to the linkage and pivot points; on inspection, push down firmly on the rear of the bike and listen for clonks, knocking, or slack movement where the shock mounts to the frame and lower linkage. Any lateral play when rocking the rear wheel side to side, or visible cracking, perished rubber, or movement at the bushed joints, would warrant close attention. The 2021 dangerous defect for a modified rear suspension component should also prompt questions about what was changed and whether the work was carried out to an appropriate standard, as aftermarket or home-modified suspension geometry can affect handling and tyre clearance. The remaining advisory items are minor but still merit a physical check. The 2021 advisories noted a noisy exhaust and a slightly distorted front wheel bead rim, both of which would be worth re-examining now. An exhaust that has become noisier over time can indicate a failing gasket, a loose mounting, or internal corrosion breaking down the baffle, and a tone change on startup that settles into a rattle at idle is a common symptom. For the front wheel, a distorted bead rim can compromise tyre seating and air retention; inspect the rim edge for any visible flattening, stepped deformation, or uneven tyre bead seating, and check that the tyre holds pressure consistently between rides. The headlamp aim defect from 2023 is also worth a quick verification by checking the beam pattern against a wall in subdued light, as a low beam pattern will both fail an MOT and create dangerous visibility on unlit roads. With its low annual mileage and documented rear suspension concerns now appearing to have been addressed in the most recent tests, this KLX125 should respond well to a focused inspection of the shock, linkage bushes, and wheel fastenings, alongside the usual checks for a low-use motorcycle such as brake function, tyre condition, and fluid freshness.