HARLEY-DAVIDSON DYNA

1340cc Petrol Class 2

#1400 of 5426 overall #228 of 397 HARLEY-DAVIDSONs #276 of 465 cruiser bikes

88.6%

first-time pass rate

5.8%

failed outright

18,741

median miles at test

792

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2023

The DYNA's first-time pass rate has risen 8.1 points since 2006, 88.6% to 96.7%.

Pass rate by mileage

how the DYNA's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage DYNA passes first time 89.8% of the time; by 50k that's 85.7%.

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 DYNA

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	20	22.7	0.4×
brakes	18	20.5	0.4×
lamps and reflectors	16	18.2	0.9×
tyres and wheels	10	11.4	0.6×
reg plates and vin	7	8	1.1×
steering and suspension	6	6.8	0.2×
fuel and exhaust	4	4.5	0.7×
Identification of the vehicle	3	3.4	1.6×
steering	2	2.3	0.6×
audible warning (Horn)	2	2.3	1.4×

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 DYNA beats 1 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 DYNA.

Pass rate by registration year

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

Best year to buy used: 1996 (90.7% pass). Weakest: 1994 (82.8%).

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 DYNA FAQ

answers computed from the data above · terms in the glossary

Is the HARLEY-DAVIDSON DYNA reliable?

The HARLEY-DAVIDSON DYNA is more reliable than average for its class: 88.6% of its 792 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1400 of 5426 models.

What does a DYNA fail its MOT on most?

lighting and signalling — 23% of all defects recorded against failed DYNA tests.

What is the best year of DYNA to buy used?

By first-time pass rate, 1996-registered examples do best (90.7%) and 1994 worst (82.8%). Condition and history still trump the year.

How many miles will a DYNA last?

The median DYNA shows 18,741 miles at test, and examples around 50k miles still pass 85.7% of the time — mileage alone rarely kills one.