Yamaha Yzf R125 MOT Pass Rate
Overall pass rate across all manufacture years, based on 13,313 real MOT test results. Failure rate: 33.4%.
Data from official DVSA MOT testing records
Yamaha Yzf R125 MOT Reliability Overview
The Yamaha Yzf R125 is a relatively common sight on UK roads, with 13,313 MOT test results recorded in our database spanning 11 manufacture years. It has an overall MOT pass rate of 66.6% and a failure rate of 33.4%, which is slightly above the UK average of approximately 37%.
Based on this data, the Yamaha Yzf R125 earns a "Good" reliability rating. The average Yamaha Yzf R125 presents for MOT with approximately 14,265 miles on the clock. Manufacture year matters: 2020 models achieve the highest pass rate at 78.9%, while 2015 models have the lowest at 58.3%. This 20.6 percentage point difference suggests notable variation in build quality or component durability across production years.
The most common MOT failure for the Yamaha Yzf R125 is Motorcycle brakes, affecting 28.0% of all tests. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. The second most common issue is Motorcycle lamps and reflectors at 14.9%. Motorcycle structure and attachments rounds out the top three at 14.5%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
Best Year to Buy
📈 How Each Vintage Ages
Tracking how each manufacture year's MOT pass rate changes as the car ages. Showing 6 vintages — click year chips to highlight.
Multi-line chart showing how different Yamaha Yzf R125 vintages degrade over time, from age 3 to 20 years.
Only vintages with 100+ tests in at least 3 different test years are shown. Fleet average is the UK-wide pass rate for all cars at each age.
📉 How Age Affects Reliability
MOT failure rate by vehicle age for the Yamaha Yzf R125. The dashed red line marks when the manufacturer warranty typically expires (3 years).
Line chart showing MOT failure rate by vehicle age from 3 to 16 years, with warranty expiry marked at 3 years.
💡 What does the warranty cliff mean?
The Yamaha Yzf R125 ages relatively gracefully. The failure rate increase of 8% after warranty is below average, suggesting good long-term reliability. Peak failure occurs at age 16 (44.6% fail rate).
Note: pass rates may improve for very old vehicles due to survivorship bias — only well-maintained cars remain on the road.
Pass Rate by Manufacture Year
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Motorcycle Brakes | 29.0% | 3,857 |
| 2 | Motorcycle Lamps And Reflectors | 14.9% | 1,988 |
| 3 | Motorcycle Structure And Attachments | 14.5% | 1,929 |
| 4 | Motorcycle Lighting And Signalling | 14.1% | 1,874 |
| 5 | Motorcycle Drive System | 9.5% | 1,262 |
| 6 | Motorcycle Steering And Suspension | 8.4% | 1,122 |
| 7 | Motorcycle Tyres And Wheels | 7.6% | 1,016 |
| 8 | Motorcycle Suspension | 6.1% | 815 |
| 9 | Motorcycle Tyres | 3.9% | 519 |
| 10 | Motorcycle Steering | 3.6% | 483 |
| 11 | Motorcycle Fuel And Exhaust | 2.9% | 388 |
| 12 | Motorcycle Body And Structure | 2.7% | 362 |
| 13 | Motorcycle Reg Plates And Vin | 1.4% | 185 |
| 14 | Identification Of The Vehicle | 1.2% | 156 |
| 15 | Motorcycle Driving Controls | 1.2% | 155 |
Failures per 10,000 Miles
avg. 14,265 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Motorcycle brakes | 20.31 | 29.0% | 3,857 |
| Motorcycle lamps and reflectors | 10.47 | 14.9% | 1,988 |
| Motorcycle structure and attachments | 10.16 | 14.5% | 1,929 |
| Motorcycle lighting and signalling | 9.87 | 14.1% | 1,874 |
| Motorcycle drive system | 6.65 | 9.5% | 1,262 |
| Motorcycle steering and suspension | 5.91 | 8.4% | 1,122 |
| Motorcycle tyres and wheels | 5.35 | 7.6% | 1,016 |
| Motorcycle suspension | 4.29 | 6.1% | 815 |
| Motorcycle tyres | 2.73 | 3.9% | 519 |
| Motorcycle steering | 2.54 | 3.6% | 483 |
| Motorcycle fuel and exhaust | 2.04 | 2.9% | 388 |
| Motorcycle body and structure | 1.91 | 2.7% | 362 |
| Motorcycle reg plates and vin | 0.97 | 1.4% | 185 |
| Identification of the vehicle | 0.82 | 1.2% | 156 |
| Motorcycle driving controls | 0.82 | 1.2% | 155 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Yamaha Yzf R125 has 14,265 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Yamaha Yzf R125 has a mileage-adjusted failure rate of 23.41% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Yamaha Yzf R125 MOT Data
The Yamaha Yzf R125 is a relatively common sight on UK roads, with 13,313 MOT test results recorded in our database spanning 11 manufacture years. It has an overall MOT pass rate of 66.6% and a failure rate of 33.4%, which is slightly above the UK average of approximately 37%.
For Yamaha Yzf R125 owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle brakes and motorcycle lamps and reflectors for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific Yzf R125 is likely to perform.
Motorcycle brakes — 28.0% of failures
Motorcycle brakes issues account for 28.0% of MOT failures on the Yamaha Yzf R125. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Motorcycle lamps and reflectors — 14.9% of failures
Motorcycle lamps and reflectors issues account for 14.9% of MOT failures on the Yamaha Yzf R125. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Motorcycle structure and attachments — 14.5% of failures
Motorcycle structure and attachments issues account for 14.5% of MOT failures on the Yamaha Yzf R125. Motorcycle structure and attachments issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.
Frequently Asked Questions
What is the MOT pass rate for the Yamaha Yzf R125?
Based on 13,313 MOT tests in our database, the Yamaha Yzf R125 has an overall pass rate of 66.6% (33.4% fail rate).
What are the most common MOT failures on a Yamaha Yzf R125?
The top 3 reasons a Yamaha Yzf R125 fails its MOT are: 1. Motorcycle brakes (28.0%), 2. Motorcycle lamps and reflectors (14.9%), 3. Motorcycle structure and attachments (14.5%). Check these areas before booking your MOT.
Is the Yamaha Yzf R125 reliable?
With a 33.4% MOT failure rate, the Yzf R125 is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Yamaha Yzf R125?
Based on failure data, focus on: Motorcycle brakes (28.0%); Motorcycle lamps and reflectors (14.9%); Motorcycle structure and attachments (14.5%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.