Ajs Nac12 MOT Pass Rate
Overall pass rate across all manufacture years, based on 41 real MOT test results. Failure rate: 41.5%.
Data from official DVSA MOT testing records
Ajs Nac12 MOT Reliability Overview
The Ajs Nac12 is a rare vehicle in the UK, with 41 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 58.5% and a failure rate of 41.5%, which is slightly below the UK average of approximately 37%.
Based on this data, the Ajs Nac12 earns a "Below Average" reliability rating. The average Ajs Nac12 presents for MOT with approximately 6,529 miles on the clock.
The most common MOT failure for the Ajs Nac12 is Motorcycle steering and suspension, affecting 43.9% of all tests. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. The second most common issue is Motorcycle lighting and signalling at 31.7%. Motorcycle tyres and wheels rounds out the top three at 19.5%. 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
* 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 Steering And Suspension | 43.9% | 18 |
| 2 | Motorcycle Lighting And Signalling | 34.1% | 14 |
| 3 | Motorcycle Tyres And Wheels | 19.5% | 8 |
| 4 | Motorcycle Brakes | 17.1% | 7 |
| 5 | Motorcycle Drive System | 17.1% | 7 |
| 6 | Motorcycle Fuel And Exhaust | 7.3% | 3 |
| 7 | Motorcycle Structure And Attachments | 4.9% | 2 |
| 8 | Motorcycle Body And Structure | 4.9% | 2 |
| 9 | Motorcycle Lamps And Reflectors | 2.4% | 1 |
Failures per 10,000 Miles
avg. 6,529 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 steering and suspension | 67.24 | 43.9% | 18 |
| Motorcycle lighting and signalling | 52.30 | 34.1% | 14 |
| Motorcycle tyres and wheels | 29.89 | 19.5% | 8 |
| Motorcycle brakes | 26.15 | 17.1% | 7 |
| Motorcycle drive system | 26.15 | 17.1% | 7 |
| Motorcycle fuel and exhaust | 11.21 | 7.3% | 3 |
| Motorcycle structure and attachments | 7.47 | 4.9% | 2 |
| Motorcycle body and structure | 7.47 | 4.9% | 2 |
| Motorcycle lamps and reflectors | 3.74 | 2.4% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Ajs Nac12 has 6,529 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 Nac12 has a mileage-adjusted failure rate of 63.56% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Ajs Nac12 MOT Data
The Ajs Nac12 is a rare vehicle in the UK, with 41 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 58.5% and a failure rate of 41.5%, which is slightly below the UK average of approximately 37%.
For Ajs Nac12 owners, these results suggest average reliability — some preparation before MOT can improve pass chances. Focus your pre-MOT checks on motorcycle steering and suspension and motorcycle lighting and signalling 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 Nac12 is likely to perform.
Motorcycle steering and suspension — 43.9% of failures
Motorcycle steering and suspension issues account for 43.9% of MOT failures on the Ajs Nac12. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Motorcycle lighting and signalling — 31.7% of failures
Motorcycle lighting and signalling issues account for 31.7% of MOT failures on the Ajs Nac12. Motorcycle lighting and signalling 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.
Motorcycle tyres and wheels — 19.5% of failures
Motorcycle tyres and wheels issues account for 19.5% of MOT failures on the Ajs Nac12. 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.
Frequently Asked Questions
What is the MOT pass rate for the Ajs Nac12?
Based on 41 (based on limited data) MOT tests in our database, the Ajs Nac12 has an overall pass rate of 58.5% (41.5% fail rate).
What are the most common MOT failures on a Ajs Nac12?
The top 3 reasons a Ajs Nac12 fails its MOT are: 1. Motorcycle steering and suspension (43.9%), 2. Motorcycle lighting and signalling (31.7%), 3. Motorcycle tyres and wheels (19.5%). Check these areas before booking your MOT.
Is the Ajs Nac12 reliable?
With a 41.5% MOT failure rate, the Nac12 is about average compared to the UK average of ~40%.
What should I check before an MOT on my Ajs Nac12?
Based on failure data, focus on: Motorcycle steering and suspension (43.9%); Motorcycle lighting and signalling (31.7%); Motorcycle tyres and wheels (19.5%). 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.