YAMAHA YBR 125

124cc Petrol Class 1

#4662 of 5426 overall #356 of 409 YAMAHAs #343 of 734 commuter bikes

YAMAHA YBR 125 — Photo: Andreslive4 · CC BY-SA 4.0

71.0%

first-time pass rate

17.1%

failed outright

10,652

median miles at test

125k

MOT tests, 2005–2025

Pass rate over time

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

The YBR 125's first-time pass rate has held steady since 2008 (71.1% → 71.2%).

Pass rate by mileage

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

A low-mileage YBR 125 passes first time 76.8% of the time; by 50k that's 63.6%.

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 YBR 125

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	10,082	18.3	1.4×
lighting and signalling	9,033	16.4	1.2×
lamps and reflectors	7,440	13.5	2.4×
structure and attachments	6,012	10.9	4.7×
steering and suspension	6,012	10.9	1.2×
drive system	5,255	9.5	4.0×
tyres and wheels	3,683	6.7	1.3×
suspension	3,023	5.5	2.7×
tyres	2,346	4.3	2.5×
steering	2,257	4.1	3.6×

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 YBR 125 beats 2 of its 4 closest rivals (HONDA CG125, HONDA CBF125, GILERA RUNNER).

HONDA CG125 72.2% pass · 89.3k tests HONDA CBF125 73.3% pass · 84.4k tests GILERA RUNNER 70.8% pass · 69.9k tests YAMAHA DT125 65.8% pass · 39.1k 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 YBR 125.

Pass rate by registration year

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

Best year to buy used: 2017 (80.0% pass). Weakest: 2005 (65.1%).

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 YBR 125 FAQ

answers computed from the data above · terms in the glossary

Is the YAMAHA YBR 125 reliable?

The YAMAHA YBR 125 is less reliable than average for its class: 71.0% of its 124,897 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4662 of 5426 models.

What does a YBR 125 fail its MOT on most?

brakes — 18% of all defects recorded against failed YBR 125 tests.

What is the best year of YBR 125 to buy used?

By first-time pass rate, 2017-registered examples do best (80.0%) and 2005 worst (65.1%). Condition and history still trump the year.

How many miles will a YBR 125 last?

The median YBR 125 shows 10,652 miles at test, and examples around 50k miles still pass 63.6% of the time — mileage alone rarely kills one.