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 2007 Keen Bad Boy Cx Petrol 49cc has had 1 MOT test on record, passing every one. It has 39,810 miles on the clock at the last MOT.
MOT & Mileage History for YN57 KFX
Data from DVSA. Last updated August 2026. Check gov.uk for the latest.
MOT failures recorded
Average miles/year
Gaps in MOT history
Check YN57 KFX
- Write-off & insurance claims Experian
- Outstanding finance check Experian
- Stolen vehicle check Experian
- Ownership changes Experian
- Mileage discrepancy alerts
- Plate & colour change history
- Franchised dealer records
- Independent garage visits
- Service interval analysis
- Warranty work logged
Full MOT Test History 1 test on record
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Vehicle Details
| Registration | YN57 KFX |
| Make | Keen |
| Model | Bad Boy Cx |
| Colour | Red |
| Fuel type | Petrol |
| Engine | 49cc |
| Year | 2007 |
| First registered | |
| Area code | YN — Sheffield, Yorkshire |
| Age identifier | 57 — September 2007 to February 2008 |
More YN57 K plates
Browse all YN57 K registrations from Sheffield.
About YN57 KFX
What car is YN57 KFX?
YN57 KFX is a red Keen Bad Boy Cx, petrol (49cc). First registered in Sheffield in 2007.
What is the mileage of YN57 KFX?
The last recorded mileage for YN57 KFX was 39,810 miles, recorded on 5 Jul 2010 during its most recent MOT test.
Has YN57 KFX passed its MOT?
YN57 KFX has had 1 MOT tests with an 100% pass rate (1 pass, 0 failures). It last passed on 5 Jul 2010.
Is YN57 KFX ULEZ compliant?
Based on its fuel type and registration year, YN57 KFX 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 YN57 KFX?
YN57 KFX is approximately 19 years old. Age identifier 57 means registered between 1 September 2007 and 28 February 2008.