Ajs Zn MOT Pass Rate
Overall pass rate across all manufacture years, based on 260 real MOT test results. Failure rate: 27.7%.
Data from official DVSA MOT testing records
Ajs Zn MOT Reliability Overview
The Ajs Zn is a rare vehicle in the UK, with 260 MOT test results recorded in our database spanning 3 manufacture years. It has an overall MOT pass rate of 72.3% and a failure rate of 27.7%, which is above the UK average of approximately 37%.
Based on this data, the Ajs Zn earns a "Very Good" reliability rating. The average Ajs Zn presents for MOT with approximately 6,084 miles on the clock. Manufacture year matters: 2017 models achieve the highest pass rate at 77.6%, while 2016 models have the lowest at 68.3%. This 9.3 percentage point difference suggests notable variation in build quality or component durability across production years.
The most common MOT failure for the Ajs Zn is Motorcycle tyres, affecting 19.6% of all tests. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. The second most common issue is Motorcycle brakes at 19.2%. Motorcycle lamps and reflectors rounds out the top three at 18.8%. 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
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 Tyres | 19.6% | 51 |
| 2 | Motorcycle Brakes | 19.2% | 50 |
| 3 | Motorcycle Lamps And Reflectors | 18.8% | 49 |
| 4 | Motorcycle Steering | 15.4% | 40 |
| 5 | Motorcycle Structure And Attachments | 11.9% | 31 |
| 6 | Motorcycle Suspension | 5.8% | 15 |
| 7 | Motorcycle Wheels | 1.9% | 5 |
| 8 | Identification Of The Vehicle | 0.8% | 2 |
| 9 | Motorcycle Audible Warning (Horn) | 0.8% | 2 |
| 10 | Motorcycle Steering And Suspension | 0.4% | 1 |
| 11 | Motorcycle Tyres And Wheels | 0.4% | 1 |
Failures per 10,000 Miles
avg. 6,084 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 tyres | 32.24 | 19.6% | 51 |
| Motorcycle brakes | 31.61 | 19.2% | 50 |
| Motorcycle lamps and reflectors | 30.98 | 18.8% | 49 |
| Motorcycle steering | 25.29 | 15.4% | 40 |
| Motorcycle structure and attachments | 19.60 | 11.9% | 31 |
| Motorcycle suspension | 9.48 | 5.8% | 15 |
| Motorcycle wheels | 3.16 | 1.9% | 5 |
| Identification of the vehicle | 1.26 | 0.8% | 2 |
| Motorcycle audible warning (Horn) | 1.26 | 0.8% | 2 |
| Motorcycle steering and suspension | 0.63 | 0.4% | 1 |
| Motorcycle tyres and wheels | 0.63 | 0.4% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Ajs Zn has 6,084 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 Ajs Zn has a mileage-adjusted failure rate of 45.53% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Ajs Zn MOT Data
The Ajs Zn is a rare vehicle in the UK, with 260 MOT test results recorded in our database spanning 3 manufacture years. It has an overall MOT pass rate of 72.3% and a failure rate of 27.7%, which is above the UK average of approximately 37%.
For Ajs Zn owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle tyres and motorcycle brakes 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 Zn is likely to perform.
Motorcycle tyres — 19.6% of failures
Motorcycle tyres issues account for 19.6% of MOT failures on the Ajs Zn. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Motorcycle brakes — 19.2% of failures
Motorcycle brakes issues account for 19.2% of MOT failures on the Ajs Zn. 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 — 18.8% of failures
Motorcycle lamps and reflectors issues account for 18.8% of MOT failures on the Ajs Zn. 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.
Frequently Asked Questions
What is the MOT pass rate for the Ajs Zn?
Based on 260 MOT tests in our database, the Ajs Zn has an overall pass rate of 72.3% (27.7% fail rate).
What are the most common MOT failures on a Ajs Zn?
The top 3 reasons a Ajs Zn fails its MOT are: 1. Motorcycle tyres (19.6%), 2. Motorcycle brakes (19.2%), 3. Motorcycle lamps and reflectors (18.8%). Check these areas before booking your MOT.
Is the Ajs Zn reliable?
With a 27.7% MOT failure rate, the Zn is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Ajs Zn?
Based on failure data, focus on: Motorcycle tyres (19.6%); Motorcycle brakes (19.2%); Motorcycle lamps and reflectors (18.8%). 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.