YAMAHA XT 125 X

124cc Petrol Class 1

#5249 of 5426 overall #405 of 409 YAMAHAs #642 of 734 commuter bikes

58.7%

first-time pass rate

27.5%

failed outright

4,818

median miles at test

3,245

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2008–2025

The XT 125 X's first-time pass rate has fallen 9.2 points since 2008, 74.4% to 65.2%.

Pass rate by mileage

how the XT 125 X's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage XT 125 X passes first time 60.2% of the time; by 20k that's 60.9%.

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 XT 125 X

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	1,091	35.5	4.0×
brakes	575	18.7	2.8×
steering and suspension	406	13.2	3.0×
lamps and reflectors	307	10	2.7×
drive system	259	8.4	7.5×
tyres and wheels	123	4	1.6×
structure and attachments	114	3.7	3.3×
reg plates and vin	78	2.5	3.8×
body and structure	66	2.1	3.6×
fuel and exhaust	58	1.9	1.9×

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

YAMAHA YBR 125 71.0% pass · 125k tests HONDA CG125 72.2% pass · 89.3k tests HONDA CBF125 73.3% pass · 84.4k tests GILERA RUNNER 70.8% pass · 69.9k tests

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 XT 125 X.

Pass rate by registration year

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

Best year to buy used: 2010 (61.2% pass). Weakest: 2006 (57.1%).

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.

YAMAHA XT 125 X FAQ

answers computed from the data above · terms in the glossary

Is the YAMAHA XT 125 X reliable?

The YAMAHA XT 125 X is less reliable than average for its class: 58.7% of its 3,245 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5249 of 5426 models.

What does a XT 125 X fail its MOT on most?

lighting and signalling — 35% of all defects recorded against failed XT 125 X tests.

What is the best year of XT 125 X to buy used?

By first-time pass rate, 2010-registered examples do best (61.2%) and 2006 worst (57.1%). Condition and history still trump the year.

How many miles will a XT 125 X last?

The median XT 125 X shows 4,818 miles at test, and examples around 20k miles still pass 60.9% of the time — mileage alone rarely kills one.