BIKERELIABILITY Reg check
Model report · 2005–2025

HONDA MONKEY

49cc Petrol Class 1
90.9%
first-time pass rate
4.7%
failed outright
1,802
median miles at test
811
MOT tests, 2005–2025
+11.6pp
vs expected · age & mileage

The pass rate is the MOT first-time pass: a roadworthiness check of the items an MOT covers (brakes, lights, tyres, steering, structure, emissions), not a full mechanical inspection of engine or gearbox internals. It is a reliability signal, not a complete measure of mechanical reliability. What this measures.

“vs expected” adjusts for age, mileage and test class, so a cherished classic and a hard-used commuter are compared fairly. How this works.

Pass rate over time

first-time pass rate by test year · 2006–2025

The MONKEY's first-time pass rate has risen 9.1 points since 2006, 90.9% to 100.0%.

74%87%100%2006: 90.9% pass (33 tests)2007: 91.7% pass (36 tests)2008: 90.3% pass (31 tests)2009: 80.0% pass (35 tests)2010: 93.5% pass (46 tests)2011: 86.5% pass (52 tests)2012: 89.4% pass (47 tests)2013: 92.2% pass (51 tests)2014: 84.6% pass (52 tests)2015: 94.3% pass (53 tests)2016: 96.9% pass (64 tests)2017: 79.0% pass (62 tests)2018: 95.6% pass (45 tests)2019: 93.9% pass (33 tests)2021: 93.9% pass (33 tests)2022: 90.0% pass (30 tests)2025: 100.0% pass (30 tests)20062025

What fails on a MONKEY

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
32 42.1 0.5×
reg plates and vin
10 13.2 1.5×
steering and suspension
9 11.8 0.3×
lamps and reflectors
6 7.9 0.3×
brakes
6 7.9 0.1×
tyres and wheels
3 3.9 0.1×
fuel and exhaust
3 3.9 0.5×
suspension
3 3.9 0.3×
steering
2 2.6 0.6×
drive system
2 2.6 0.3×

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 MONKEY beats 4 of its 4 closest rivals (PEUGEOT SPEEDFIGHT, PIAGGIO ZIP, PIAGGIO NRG).

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 MONKEY.

Compare with any bike

rival not listed above? pick any model to see it head-to-head with the Monkey

Pass rate by registration year

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

Best year to buy used: 2007 (95.5% pass). Weakest: 2002 (94.4%).

94%95%96%2002: 94.4% pass (72 tests)2007: 95.5% pass (67 tests)20022007

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 MONKEY FAQ

answers computed from the data above · terms in the glossary

Is the HONDA MONKEY reliable?

The HONDA MONKEY is more reliable than average for its class: 90.9% of its 811 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #705 of 5428 models.

What does a MONKEY fail its MOT on most?

lighting and signalling — 42% of all defects recorded against failed MONKEY tests.

Embed this bike

Free to embed on your site, blog or forum — a live Honda Monkey reliability card that stays up to date and links back here. More on the free API page.