BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HARLEY-DAVIDSON/FXDB STREET BOB 1584 09
Model report · 2005–2025

HARLEY-DAVIDSON FXDB STREET BOB 1584 09

1584cc Petrol Class 2
85.9%
first-time pass rate
5.3%
failed outright
11,998
median miles at test
512
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2012–2023

The FXDB STREET BOB 1584 09's first-time pass rate has risen 7.2 points since 2012, 80.7% to 87.9%.

72%86%100%2012: 80.7% pass (57 tests)2013: 87.3% pass (55 tests)2014: 82.6% pass (46 tests)2015: 84.6% pass (39 tests)2016: 76.7% pass (43 tests)2017: 82.4% pass (34 tests)2021: 97.1% pass (35 tests)2022: 90.6% pass (32 tests)2023: 87.9% pass (33 tests)20122023

Pass rate by mileage

how the FXDB STREET BOB 1584 09's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage FXDB STREET BOB 1584 09 passes first time 84.0% of the time; by 30k that's 78.1%.

76%84%93%0k: 84.0% pass (212 tests)10k: 90.1% pass (192 tests)20k: 81.1% pass (53 tests)30k: 78.1% pass (32 tests)0k20k30k

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 FXDB STREET BOB 1584 09

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
8 20.5 0.3×
steering and suspension
7 17.9 0.4×
brakes
7 17.9 0.3×
lamps and reflectors
5 12.8 0.6×
tyres and wheels
4 10.3 0.3×
fuel and exhaust
3 7.7 0.8×
steering
2 5.1 0.9×
reg plates and vin
1 2.6 0.3×
driving controls
1 2.6 0.8×
audible warning (Horn)
1 2.6 1.1×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the FXDB STREET BOB 1584 09 beats 0 of its 4 closest rivals (HARLEY-DAVIDSON FLSTF, HARLEY-DAVIDSON FLSTC, HARLEY-DAVIDSON XL1200C).

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 FXDB STREET BOB 1584 09.

Pass rate by registration year

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

Best year to buy used: 2009 (84.4% pass). Weakest: 2009 (84.4%).

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.

HARLEY-DAVIDSON FXDB STREET BOB 1584 09 FAQ

answers computed from the data above · terms in the glossary

Is the HARLEY-DAVIDSON FXDB STREET BOB 1584 09 reliable?

The HARLEY-DAVIDSON FXDB STREET BOB 1584 09 is about average for its class: 85.9% of its 512 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2230 of 5426 models.

What does a FXDB STREET BOB 1584 09 fail its MOT on most?

lighting and signalling — 21% of all defects recorded against failed FXDB STREET BOB 1584 09 tests.

How many miles will a FXDB STREET BOB 1584 09 last?

The median FXDB STREET BOB 1584 09 shows 11,998 miles at test, and examples around 30k miles still pass 78.1% of the time — mileage alone rarely kills one.