DVSA Statistics
1991 Harley Davidson Fat Boy
MOT Pass Rate & Pre-MOT Checklist
There isn't much MOT data yet for the 1991 Harley Davidson Fat Boy (only 2 tests in our DVSA dataset), so these figures are a rough guide. We still highlight common failure items below so you can check before your MOT.
Pass Rate
Based on 2 DVSA anonymised MOT tests · About this data
Pass Rate
50%
Lower than average
Limited data available for this model; results may be less representative.
Top Failure Reasons
Common MOT failures for this model
Parts Available
Brakes are a common wear item.
Based on DVSA statistics from 2 recorded tests.
Pre-MOT Checklist for 1991 Harley Davidson Fat Boy
Based on common failure points for this model, check these items before your MOT:
- 1
Test brakes for effectiveness, pull, and unusual noises when driving
Brakes – Common fail on this model
- 2
Check tyre tread depth is at least 1.6mm across the central 3/4 of the tyre
Tyres – Common fail on this model
Do you own this car?
Check your specific vehicle for outstanding advisories or recalls. Get a personalized risk report for your exact Harley Davidson Fat Boy.
Frequently Asked Questions
Is a 1991 Harley Davidson Fat Boy likely to fail its MOT?
Based on DVSA statistics, the 1991 Harley Davidson Fat Boy has a 50% MOT pass rate. This is below average, so extra pre-MOT checks are recommended.
What are the most common MOT failures on a 1991 Harley Davidson Fat Boy?
The most common MOT failure reasons for a 1991 Harley Davidson Fat Boy are: brake disc or drum excessively weakened, insecure or fractured, standard fitment seat belt missing, an unsuitable tyre fitted. Many of these can be checked and fixed before your test to improve your chances of passing.
How can I reduce the chance my 1991 Harley Davidson Fat Boy fails its MOT?
To improve your chances of passing, check the items that commonly fail on this model: brake disc or drum excessively weakened, insecure or fractured, standard fitment seat belt missing, an unsuitable tyre fitted. Use our pre-MOT checklist above to identify potential issues before your test. Many common failures are easy DIY fixes.
How many 1991 Harley Davidson Fat Boys fail their MOT?
Around 50% of 1991 Harley Davidson Fat Boys fail their MOT test, meaning roughly 1 in 2 don't pass first time. The most common reasons are brake disc or drum excessively weakened, insecure or fractured and standard fitment seat belt missing. Pre-checking these items can significantly improve your chances.
What should I check before my 1991 Harley Davidson Fat Boy MOT?
Before your 1991 Harley Davidson Fat Boy MOT, check these commonly-failed items: brake disc or drum excessively weakened, insecure or fractured, standard fitment seat belt missing, an unsuitable tyre fitted. Most are visual checks you can do at home – look for worn tyres, test all lights work, and check for obvious damage or leaks.
Is the 1991 Harley Davidson Fat Boy reliable for MOT?
With a 50% MOT pass rate, the 1991 Harley Davidson Fat Boy performs below average compared to typical vehicles. Extra attention to pre-MOT checks is recommended for this model.