BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

HONDA C50

49cc Petrol Class 1
81.7%
first-time pass rate
10.6%
failed outright
11,256
median miles at test
6,237
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2025

The C50's first-time pass rate has risen 18.2 points since 2005, 75.3% to 93.5%.

71%84%98%2005: 75.3% pass (154 tests)2006: 79.0% pass (481 tests)2007: 79.6% pass (402 tests)2008: 79.8% pass (361 tests)2009: 78.2% pass (348 tests)2010: 78.2% pass (325 tests)2011: 80.7% pass (353 tests)2012: 78.5% pass (358 tests)2013: 78.8% pass (359 tests)2014: 80.4% pass (358 tests)2015: 82.4% pass (340 tests)2016: 84.4% pass (314 tests)2017: 84.1% pass (327 tests)2018: 81.4% pass (237 tests)2019: 82.4% pass (205 tests)2020: 81.6% pass (217 tests)2021: 87.0% pass (254 tests)2022: 87.1% pass (264 tests)2023: 88.7% pass (230 tests)2024: 87.3% pass (165 tests)2025: 93.5% pass (185 tests)20052025

Pass rate by mileage

how the C50's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage C50 passes first time 83.3% of the time; by 50k that's 79.6%.

76%80%85%0k: 83.3% pass (2,837 tests)10k: 81.2% pass (1,724 tests)20k: 80.3% pass (952 tests)30k: 78.4% pass (356 tests)40k: 77.3% pass (128 tests)50k: 79.6% pass (54 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 C50

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
624 37.3 1.2×
steering and suspension
310 18.5 1.2×
brakes
197 11.8 0.6×
tyres and wheels
194 11.6 1.2×
lamps and reflectors
99 5.9 0.6×
body and structure
66 3.9 1.9×
drive system
62 3.7 1.2×
fuel and exhaust
52 3.1 1.0×
structure and attachments
42 2.5 0.7×
suspension
26 1.6 0.4×

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 C50 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 C50.

Pass rate by registration year

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

Best year to buy used: 2005 (93.2% pass). Weakest: 1978 (74.4%).

71%84%97%1967: 88.2% pass (76 tests)1968: 79.4% pass (63 tests)1970: 83.7% pass (135 tests)1971: 79.9% pass (363 tests)1972: 83.1% pass (83 tests)1975: 85.1% pass (114 tests)1976: 83.5% pass (115 tests)1977: 75.0% pass (84 tests)1978: 74.4% pass (78 tests)1979: 80.2% pass (182 tests)1980: 80.9% pass (235 tests)1981: 85.3% pass (184 tests)1982: 78.2% pass (542 tests)1983: 84.7% pass (417 tests)1984: 80.4% pass (433 tests)1985: 79.5% pass (781 tests)1986: 79.1% pass (526 tests)1987: 82.8% pass (656 tests)1988: 80.9% pass (178 tests)1995: 83.1% pass (59 tests)2000: 84.2% pass (57 tests)2002: 83.3% pass (78 tests)2005: 93.2% pass (59 tests)2008: 88.9% pass (63 tests)196719822008

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 C50 FAQ

answers computed from the data above · terms in the glossary

Is the HONDA C50 reliable?

The HONDA C50 is more reliable than average for its class: 81.7% of its 6,237 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #3242 of 5426 models.

What does a C50 fail its MOT on most?

lighting and signalling — 37% of all defects recorded against failed C50 tests.

What is the best year of C50 to buy used?

By first-time pass rate, 2005-registered examples do best (93.2%) and 1978 worst (74.4%). Condition and history still trump the year.

How many miles will a C50 last?

The median C50 shows 11,256 miles at test, and examples around 50k miles still pass 79.6% of the time — mileage alone rarely kills one.