Harley-Davidson FXFBS FAT BOB 114 1868 MOT pass rate and common failures

Harley-Davidson FXFBS FAT BOB 114 1868 motorcycles pass the MOT 90.88% of the time, measured across 658 tests in the DVSA record. A further 4.71% passed only after a defect was put right at the test station.

Better than average: 4 points above the 86.87% figure for all motorcycles tested.

Pass rate 90.88% 598 of 658

Fixed at the station 4.71% passed after an on-the-spot repair

Average mileage at test 9,185 miles

Average age at test 6.39 years old

Engine 1,869cc MOT class 1 and 2

For sale now 0 Harley-Davidson FXFBS FAT BOB 114 1868 adverts

What to check before the MOT

Built from this model's own failure record, not general advice.

Start with missing - it accounts for 93.1% of failed tests on this model.
Then check does not conform to the specified requirements and indicates excessive fluctuation of brake effort, the next two most common reasons.
The most common advisory is noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (18.8% of all tests) - not a failure, but money you will spend sooner or later.
Average recorded mileage at test is 9,185 miles, which is the number to compare any advert against.

Pass rate by age

A single pass rate hides the most useful thing in this data: how the same model behaves at three years old and at fifteen.

Age at test	Pass rate		Tests
3-5 years	88.63%		211
6-10 years	91.93%		446

Why the Harley-Davidson FXFBS FAT BOB 114 1868 fails

Share of failed tests on this model where the item was recorded. One test can fail on several items, so the column does not add up to 100%.

#	Item	Of failures	Tests
1	Missing	93.1%	27
2	Does not conform to the specified requirements	58.6%	17
3	Indicates excessive fluctuation of brake effort	34.5%	10
4	Not working	24.1%	7
5	Incorrect	13.8%	4
6	Does not illuminate simultaneously with the position lamp(s)	10.3%	3
7	Inoperative in the case of a single lamp or all lamps	10.3%	3
8	Does not illuminate by the operation of both brake controls	6.9%	2
9	Missing in the case of a single lamp or all lamps	6.9%	2
10	Too high	6.9%	2

Most common advisories

Not a failure and not a legal requirement to fix - but an advisory that repeats year after year is money the next owner spends.

#	Item	Of all tests	Tests
1	Noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition	18.8%	124
2	Indicates excessive fluctuation of brake effort	5.9%	39
3	Tread depth is below minimum requirements of 1.0mm	5.5%	36
4	Less than 1.0 mm thick	1.5%	10
5	Tread not clearly visible	1.1%	7
6	Has a serious fluid leak	0.6%	4
7	Excessively stiff or notchy	0.3%	2
8	Excessively loose	0.2%	1
9	Has excessive play	0.2%	1
10	Insecure	0.2%	1

Harley-Davidson FXFBS FAT BOB 114 1868 for sale

No Harley-Davidson FXFBS FAT BOB 114 1868 in stock at the moment - 48 other Harley-Davidson bikes are advertised.

Used Harley-Davidson FXFBS FAT BOB 114 1868 Used Harley-Davidson All Harley-Davidson Harley-Davidson MOT statistics Check a specific bike by plate

Similar bikes compared

Models of comparable capacity, so the comparison means something.

Model	Tests	Pass rate	Avg mileage
Suzuki GSX1400 · 1,402cc	2,352	91.54%	26,720
Triumph THUNDERBIRD 1600 · 1500-1800cc	1,767	89.3%	16,841
Harley-Davidson FLSTF · 1,507cc	1,568	91.52%	20,653
BMW K 1600 · 1,649cc	1,484	95.62%	19,181
Harley-Davidson FLSTC · 1,503cc	1,202	91.43%	25,624
Kawasaki ZX 1352-1441cc · 1352-1441cc	1,014	90.73%	19,713

Source: DVSA MOT testing data, 2025 · updated Aug 2026 · licence and method

Harley-Davidson FXFBS FAT BOB 114 1868 MOT questions

What is the MOT pass rate for the Harley-Davidson FXFBS FAT BOB 114 1868?+

90.88% of Harley-Davidson FXFBS FAT BOB 114 1868 MOT tests end in a pass, based on 658 tests in the DVSA dataset.

What is the most common MOT failure on a Harley-Davidson FXFBS FAT BOB 114 1868?+

Missing, which appears in 93.1% of failed tests on this model.

Does the Harley-Davidson FXFBS FAT BOB 114 1868 get harder to pass as it ages?+

At 6-10 years old the pass rate is 91.93%, against 88.63% for examples 3-5 years old.

Where does this data come from?+

From the DVSA anonymised MOT testing dataset, which records every MOT carried out in England, Scotland and Wales. It is published under the Open Government Licence and covers 2025.

Does a high pass rate mean the bike is reliable?+

Not by itself. The MOT checks safety items - brakes, tyres, lights, structure - and says nothing about engines, gearboxes or electrics. Read it as a maintenance signal, not a reliability score.