Vehicle summary
ULEZ status is estimated based on fuel type and registration year. It may not reflect the actual emission standard of this vehicle. Check with TfL for a definitive answer.
At a glance
This 2021 Mutt Mastiff 125 Petrol 125cc has had 2 MOT tests on record, passing 1 and failing once (50% pass rate). It has 539 miles on the clock at the last MOT.
MOT & Mileage History for ET21 HKK
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failure recorded
Average miles/year
Gaps in MOT history
Mileage Analysis
| Latest reading | 539 miles |
| Reading date | |
| Mileage consistency | Unknown |
Check ET21 HKK
- Write-off & insurance claims Experian
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- Service interval analysis
- Warranty work logged
Full MOT Test History 2 tests on record
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Vehicle Details
| Registration | ET21 HKK |
| Make | Mutt |
| Model | Mastiff 125 |
| Colour | Black |
| Fuel type | Petrol |
| Engine | 125cc |
| Year | 2021 |
| First registered | |
| Area code | ET — Chelmsford, Essex |
| Age identifier | 21 — March 2021 to August 2021 |
More ET21 H plates
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About ET21 HKK
What car is ET21 HKK?
ET21 HKK is an black Mutt Mastiff 125, petrol (125cc). First registered in Chelmsford in 2021.
What is the mileage of ET21 HKK?
The last recorded mileage for ET21 HKK was 539 miles, recorded on 7 Mar 2025 during its most recent MOT test.
Has ET21 HKK passed its MOT?
ET21 HKK has had 2 MOT tests with a 50% pass rate (1 pass, 1 failure). It last passed on 7 Mar 2025.
Is ET21 HKK ULEZ compliant?
Based on its fuel type and registration year, ET21 HKK is likely ULEZ compliant. Petrol post-2005 (Euro 4). This is an estimate based on typical emission standards — confirm with TfL's ULEZ checker for a definitive answer.
How old is ET21 HKK?
ET21 HKK is approximately 5 years old. Age identifier 21 means registered between 1 March 2021 and 31 August 2021.