BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HONDA/CX500EC
Model report · 2005–2025

HONDA CX500EC

499cc Petrol Class 2
78.7%
first-time pass rate
13.8%
failed outright
39,908
median miles at test
1,604
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2020

The CX500EC's first-time pass rate has risen 4.9 points since 2005, 77.1% to 82.0%.

69%82%95%2005: 77.1% pass (35 tests)2006: 76.2% pass (168 tests)2007: 78.9% pass (142 tests)2008: 76.4% pass (123 tests)2009: 78.4% pass (134 tests)2010: 81.3% pass (123 tests)2011: 75.2% pass (129 tests)2012: 73.5% pass (117 tests)2013: 78.2% pass (101 tests)2014: 79.8% pass (99 tests)2015: 82.6% pass (92 tests)2016: 87.2% pass (78 tests)2017: 78.1% pass (73 tests)2018: 90.5% pass (63 tests)2019: 73.1% pass (67 tests)2020: 82.0% pass (50 tests)20052020

Pass rate by mileage

how the CX500EC's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage CX500EC passes first time 75.0% of the time; by 50k that's 76.2%.

72%82%91%0k: 75.0% pass (116 tests)10k: 88.2% pass (119 tests)20k: 80.8% pass (260 tests)30k: 78.1% pass (306 tests)40k: 76.6% pass (334 tests)50k: 76.2% pass (202 tests)0k30k50k

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 CX500EC

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
181 33.3 1.8×
steering and suspension
122 22.4 1.8×
lighting and signalling
111 20.4 1.2×
tyres and wheels
44 8.1 1.1×
fuel and exhaust
28 5.1 1.8×
lamps and reflectors
18 3.3 0.4×
body and structure
16 2.9 1.6×
suspension
11 2 0.7×
reg plates and vin
7 1.3 0.7×
driving controls
6 1.1 1.6×

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 CX500EC beats 2 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

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 CX500EC.

Pass rate by registration year

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

Best year to buy used: 1984 (85.8% pass). Weakest: 1981 (75.4%).

73%81%88%1981: 75.4% pass (61 tests)1982: 79.6% pass (555 tests)1983: 76.4% pass (736 tests)1984: 85.8% pass (162 tests)198119831984

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.

HONDA CX500EC FAQ

answers computed from the data above · terms in the glossary

Is the HONDA CX500EC reliable?

The HONDA CX500EC is less reliable than average for its class: 78.7% of its 1,604 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #3816 of 5426 models.

What does a CX500EC fail its MOT on most?

brakes — 33% of all defects recorded against failed CX500EC tests.

What is the best year of CX500EC to buy used?

By first-time pass rate, 1984-registered examples do best (85.8%) and 1981 worst (75.4%). Condition and history still trump the year.

How many miles will a CX500EC last?

The median CX500EC shows 39,908 miles at test, and examples around 50k miles still pass 76.2% of the time — mileage alone rarely kills one.