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

HONDA NS125

124cc Petrol Class 1
#5349 of 5426 overall #920 of 921 HONDAs #700 of 734 commuter bikes
54.0%
first-time pass rate
37.3%
failed outright
23,047
median miles at test
2,860
MOT tests, 2005–2025

Pass rate over time

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

The NS125's first-time pass rate has risen 19.6 points since 2005, 51.6% to 71.2%.

38%62%86%2005: 51.6% pass (95 tests)2006: 53.2% pass (374 tests)2007: 47.3% pass (277 tests)2008: 50.6% pass (255 tests)2009: 50.8% pass (244 tests)2010: 52.2% pass (209 tests)2011: 45.9% pass (194 tests)2012: 47.4% pass (173 tests)2013: 48.8% pass (166 tests)2014: 52.4% pass (143 tests)2015: 53.3% pass (105 tests)2016: 60.4% pass (101 tests)2017: 66.3% pass (89 tests)2018: 61.8% pass (55 tests)2019: 60.0% pass (55 tests)2020: 75.8% pass (62 tests)2021: 67.2% pass (67 tests)2022: 77.8% pass (45 tests)2023: 67.3% pass (55 tests)2024: 75.7% pass (37 tests)2025: 71.2% pass (59 tests)20052025

Pass rate by mileage

how the NS125's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage NS125 passes first time 64.8% of the time; by 50k that's 52.9%.

48%58%68%0k: 64.8% pass (315 tests)10k: 56.1% pass (800 tests)20k: 51.5% pass (940 tests)30k: 51.4% pass (527 tests)40k: 50.8% pass (189 tests)50k: 52.9% pass (51 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 NS125

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
1,494 33.1 6.1×
steering and suspension
1,344 29.8 8.1×
brakes
671 14.9 3.6×
drive system
263 5.8 10.0×
tyres and wheels
209 4.6 3.2×
body and structure
194 4.3 10.4×
fuel and exhaust
124 2.7 4.9×
lamps and reflectors
76 1.7 1.0×
suspension
71 1.6 2.2×
reg plates and vin
65 1.4 3.3×

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 NS125 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 NS125.

Pass rate by registration year

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

Best year to buy used: 1993 (60.2% pass). Weakest: 1990 (51.0%).

49%56%62%1986: 52.2% pass (180 tests)1987: 56.0% pass (134 tests)1988: 56.3% pass (261 tests)1989: 52.8% pass (617 tests)1990: 51.0% pass (596 tests)1991: 52.3% pass (327 tests)1992: 53.1% pass (384 tests)1993: 60.2% pass (161 tests)1994: 52.9% pass (51 tests)198619901994

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 NS125 FAQ

answers computed from the data above · terms in the glossary

Is the HONDA NS125 reliable?

The HONDA NS125 is less reliable than average for its class: 54.0% of its 2,860 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5349 of 5426 models.

What does a NS125 fail its MOT on most?

lighting and signalling — 33% of all defects recorded against failed NS125 tests.

What is the best year of NS125 to buy used?

By first-time pass rate, 1993-registered examples do best (60.2%) and 1990 worst (51.0%). Condition and history still trump the year.

How many miles will a NS125 last?

The median NS125 shows 23,047 miles at test, and examples around 50k miles still pass 52.9% of the time — mileage alone rarely kills one.