The MOT Files

Motorcycle reliability file

Harley-Davidson FXDF MOT pass rate & common failures

From 513 recorded MOT tests of the Harley-Davidson FXDF, published by DVSA.

Data updated

Quick answer

The Harley-Davidson FXDF passes 89.3% of MOT tests, against 86.5% for all motorcycles. The most recorded failure is "A stop lamp(s) remains on when the brakes are released", in 23.1% of failed tests.

At a glance

Recorded pass rate

89.3%unadjusted513 tests

2.7 points above the fleet average of 86.5%. The examples tested do not cover a wide enough spread of ages and mileages to compare fairly against the rest of the fleet, so no rank is claimed; the failure record below stands on its own.

DVSA recorded wording

Most common failure items

Share of failed Harley-Davidson FXDF tests in which each item was recorded. One failed test often lists several, so these do not sum to 100%.

  1. 1.A stop lamp(s) remains on when the brakes are released23.1%

    6 occurrences

  2. 2.Number plate does not conform to the specified requirements19.2%

    5 occurrences

  3. 3.Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning15.4%

    4 occurrences

  4. 4.A stop lamp(s) does not illuminate by the operation of both brake controls or remains on when the brakes are released11.5%

    3 occurrences

  5. 5.Excessive fluctuation in brake effort through each wheel revolution7.7%

    2 occurrences

  6. 6.A wheel bearing excessively rough7.7%

    2 occurrences

  7. 7.Reflector missing or reflecting white to the rear7.7%

    2 occurrences

  8. 8.A shock absorber not functioning or leaking severely7.7%

    2 occurrences

  9. 9.Projected beam image is obviously incorrect7.7%

    2 occurrences

  10. 10.Tyre tread depth not in accordance with the requirements3.8%

    1 occurrences

  11. 11.The aim of a headlamp is not within limits laid down in the requirements3.8%

    1 occurrences

  12. 12.The aim of a headlamp is not within limits laid down in the requirements3.8%

    1 occurrences

Warnings without a failure

Most common advisories

Share of all Harley-Davidson FXDF tests carrying each advisory.

  1. 1.Exhaust noise levels in excess of those permitted23.0%

    118 tests

  2. 2.Tyre tread depth not in accordance with the requirements3.9%

    20 tests

  3. 3.Brake lining or pad worn below 1.0mm2.9%

    15 tests

  4. 4.Excessive fluctuation in brake effort through each wheel revolution2.5%

    13 tests

  5. 5.A shock absorber not functioning or leaking severely1.6%

    8 tests

  6. 6.Tyre tread depth not in accordance with the requirements1.2%

    6 tests

  7. 7.Steering head bearings excessively stiff, notchy, or with excessive wear or play1.2%

    6 tests

  8. 8.Significant brake effort recorded with no brake applied indicating a binding brake0.6%

    3 tests

What gets tested

The FXDF fleet

Average mileage recorded at test
21,385
Test classes
class 2: 513

Compare within the range

Other Harley-Davidson motorcycles

Common questions

What is the MOT pass rate for a Harley-Davidson FXDF?
89.3% unadjusted, from 513 DVSA tests. The average across all motorcycles is 86.5%.
What does a Harley-Davidson FXDF fail its MOT on?
"A stop lamp(s) remains on when the brakes are released" is recorded in 23.1% of failed Harley-Davidson FXDF tests, followed by "Number plate does not conform to the specified requirements" (19.2%). One failed test often lists several items.
What mileage does a Harley-Davidson FXDF usually have at its MOT?
21,385 miles on average across every age tested, so a description of the fleet rather than an annual figure. Motorcycle mileages are low and vary enormously with use; a commuter bike and a weekend bike of the same age can differ by a factor of ten.

Analysis built from DVSA data of