Ajs Firefox (2019)
2019 Ajs Firefox
CarHunch analysed 124 real MOT records for the 2019 Ajs Firefox. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2019 AJS Firefox has a first-time MOT pass rate of just 53.2%, significantly below the UK average of 80%, which suggests these bikes are arriving at test in noticeably worse condition than typical. With 9.7% of vehicles having experienced a dangerous defect, buyers should factor in potential safety issues alongside the higher-than-average repair costs this failure rate implies.
At an average mileage of 6,622 miles for a five-year-old bike, these Firefoxes are relatively lightly used, yet still struggling through their MOTs—pointing to maintenance neglect rather than wear-and-tear. Before purchasing, get a pre-buy inspection focused on the electrical and brake systems, as the 1.4 advisories per vehicle average suggests these areas commonly need attention.
What to check before buying a 2019 Ajs Firefox
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Ajs Firefox
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (98%) | 122 | 53.4% | 0.32 |
| Other (2%) | 2 | 41.7% | 1.5 |
Mileage Distribution
Most 2019 Ajs Firefox vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2019 Ajs Firefox vehicles fall between 3,484 and 8,383 miles.
2019 Ajs Firefox — Still on the Road
Numbers are declining — 25 vehicles still getting MOTs in 2025 (48% of peak).
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2022–2025.
MOT History Averages
Most Common MOT Issues — 2019 Ajs Firefox
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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25.5%
Rear Tyre worn close to the legal limit
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13.1%
Nearside Front Shock absorber has a light misting of oil
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12.4%
Front Shock absorber has a light misting of oil
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12.4%
Steering headbearing slightly stiff or notchy
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11.7%
Offside Front Shock absorber has a light misting of oil
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8.3%
Steering headbearing has excessive wear or free play
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7.6%
Rear Valve stem seriously damaged
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7.6%
Steering headbearing has slight free play
Data covers a 3-year window centred on 2019. Counts include advisories and failures.
Found a specific Ajs Firefox?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.