HARLEY-DAVIDSON FAT BOY FLSTF 103 1690 13

1690cc Petrol Class 2

#883 of 5426 overall #134 of 397 HARLEY-DAVIDSONs #166 of 465 cruiser bikes

90.2%

first-time pass rate

2.3%

failed outright

8,526

median miles at test

386

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2016–2024

The FAT BOY FLSTF 103 1690 13's first-time pass rate has risen 1.1 points since 2016, 87.8% to 88.9%.

Pass rate by mileage

how the FAT BOY FLSTF 103 1690 13's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage FAT BOY FLSTF 103 1690 13 passes first time 90.9% of the time; by 20k that's 90.9%.

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a FAT BOY FLSTF 103 1690 13

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	8	47.1
Identification of the vehicle	3	17.6
tyres	3	17.6
brakes	2	11.8
lighting and signalling	1	5.9

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the FAT BOY FLSTF 103 1690 13 beats 4 of its 4 closest rivals (HARLEY-DAVIDSON FLSTF, HARLEY-DAVIDSON FLSTC, HARLEY-DAVIDSON XL1200C).

HARLEY-DAVIDSON FLSTF 88.9% pass · 30.1k tests HARLEY-DAVIDSON FLSTC 89.4% pass · 23.7k tests HARLEY-DAVIDSON XL1200C 88.4% pass · 15.7k tests HARLEY-DAVIDSON FXDWG 88.7% pass · 14.6k tests

Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the FAT BOY FLSTF 103 1690 13.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 2013 (90.1% pass). Weakest: 2013 (90.1%).

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.