BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HARLEY-DAVIDSON/FXCWC ROCKER C 1584 09
Model report · 2005–2025

HARLEY-DAVIDSON FXCWC ROCKER C 1584 09

1584cc Petrol Class 2
87.5%
first-time pass rate
3.9%
failed outright
8,116
median miles at test
441
MOT tests, 2005–2025

Pass rate over time

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

The FXCWC ROCKER C 1584 09's first-time pass rate has risen 15.9 points since 2012, 67.4% to 83.3%.

60%80%100%2012: 67.4% pass (43 tests)2013: 92.5% pass (40 tests)2014: 94.9% pass (39 tests)2015: 81.4% pass (43 tests)2016: 86.5% pass (37 tests)2017: 97.1% pass (34 tests)2022: 90.0% pass (30 tests)2023: 83.3% pass (30 tests)20122023

Pass rate by mileage

how the FXCWC ROCKER C 1584 09's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage FXCWC ROCKER C 1584 09 passes first time 88.1% of the time; by 20k that's 88.1%.

86%87%89%0k: 88.1% pass (260 tests)10k: 86.5% pass (96 tests)20k: 88.1% pass (59 tests)0k10k20k

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 FXCWC ROCKER C 1584 09

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lamps and reflectors
8 27.6
Identification of the vehicle
5 17.2
reg plates and vin
4 13.8
fuel and exhaust
2 6.9
audible warning (Horn)
2 6.9
lighting and signalling
2 6.9
brakes
2 6.9
steering and suspension
2 6.9
tyres and wheels
1 3.4
tyres
1 3.4

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 FXCWC ROCKER C 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 FXCWC ROCKER C 1584 09.

Pass rate by registration year

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

Best year to buy used: 2010 (89.8% pass). Weakest: 2008 (85.7%).

85%88%91%2008: 85.7% pass (84 tests)2009: 87.6% pass (298 tests)2010: 89.8% pass (59 tests)200820092010

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.