BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HARLEY-DAVIDSON/FXFB FAT BOB 1745 19
Model report · 2005–2025

HARLEY-DAVIDSON FXFB FAT BOB 1745 19

1745cc Petrol Class 2
93.3%
first-time pass rate
2.0%
failed outright
5,604
median miles at test
150
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2022–2025

The FXFB FAT BOB 1745 19's first-time pass rate has fallen 8.8 points since 2022, 100.0% to 91.2%.

88%94%100%2022: 100.0% pass (34 tests)2023: 91.5% pass (47 tests)2024: 90.3% pass (31 tests)2025: 91.2% pass (34 tests)20222025

What fails on a FXFB FAT BOB 1745 19

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lamps and reflectors
5 71.4
brakes
1 14.3
structure and attachments
1 14.3

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 FXFB FAT BOB 1745 19 beats 4 of its 4 closest rivals (HARLEY-DAVIDSON FLSTF, HARLEY-DAVIDSON FLSTC, HARLEY-DAVIDSON FXDWG).

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 FXFB FAT BOB 1745 19.

Pass rate by registration year

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

Best year to buy used: 2019 (94.5% pass). Weakest: 2019 (94.5%).

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.