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

HONDA CM125C

124cc Petrol Class 1
#4929 of 5426 overall #903 of 921 HONDAs #481 of 734 commuter bikes
66.6%
first-time pass rate
22.1%
failed outright
25,148
median miles at test
3,070
MOT tests, 2005–2025

Pass rate over time

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

The CM125C's first-time pass rate has risen 13.5 points since 2005, 67.6% to 81.1%.

52%70%87%2005: 67.6% pass (71 tests)2006: 71.1% pass (263 tests)2007: 70.4% pass (240 tests)2008: 63.8% pass (246 tests)2009: 58.1% pass (222 tests)2010: 63.9% pass (227 tests)2011: 61.4% pass (215 tests)2012: 62.3% pass (220 tests)2013: 66.3% pass (187 tests)2014: 71.0% pass (169 tests)2015: 68.8% pass (144 tests)2016: 66.9% pass (163 tests)2017: 68.6% pass (121 tests)2018: 69.2% pass (78 tests)2019: 68.2% pass (85 tests)2020: 63.8% pass (80 tests)2021: 64.6% pass (96 tests)2022: 73.9% pass (88 tests)2023: 75.0% pass (72 tests)2024: 67.4% pass (46 tests)2025: 81.1% pass (37 tests)20052025

Pass rate by mileage

how the CM125C's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage CM125C passes first time 77.7% of the time; by 50k that's 64.5%.

53%68%82%0k: 77.7% pass (448 tests)10k: 68.6% pass (646 tests)20k: 64.5% pass (832 tests)30k: 64.2% pass (631 tests)40k: 57.5% pass (261 tests)50k: 64.5% pass (121 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 CM125C

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
563 26.5 2.6×
steering and suspension
507 23.9 3.4×
brakes
251 11.8 1.4×
drive system
171 8.1 5.7×
tyres and wheels
162 7.6 2.1×
body and structure
154 7.3 7.2×
fuel and exhaust
99 4.7 3.5×
lamps and reflectors
98 4.6 1.1×
structure and attachments
65 3.1 2.1×
reg plates and vin
51 2.4 2.4×

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 CM125C beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

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 CM125C.

Pass rate by registration year

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

Best year to buy used: 2003 (75.1% pass). Weakest: 1986 (61.5%).

59%68%78%1982: 64.2% pass (491 tests)1983: 67.6% pass (772 tests)1984: 65.2% pass (609 tests)1985: 65.3% pass (632 tests)1986: 61.5% pass (174 tests)2003: 75.1% pass (233 tests)198219852003

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 CM125C FAQ

answers computed from the data above · terms in the glossary

Is the HONDA CM125C reliable?

The HONDA CM125C is less reliable than average for its class: 66.6% of its 3,070 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4929 of 5426 models.

What does a CM125C fail its MOT on most?

lighting and signalling — 27% of all defects recorded against failed CM125C tests.

What is the best year of CM125C to buy used?

By first-time pass rate, 2003-registered examples do best (75.1%) and 1986 worst (61.5%). Condition and history still trump the year.

How many miles will a CM125C last?

The median CM125C shows 25,148 miles at test, and examples around 50k miles still pass 64.5% of the time — mileage alone rarely kills one.