YAMAHA R125 (YZF 125-A)

124cc Petrol Class 1

#3975 of 5426 overall #285 of 409 YAMAHAs #188 of 226 sport bikes

77.5%

first-time pass rate

11.8%

failed outright

7,281

median miles at test

373

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2024–2025

The R125 (YZF 125-A)'s first-time pass rate has fallen 1.7 points since 2024, 79.2% to 77.5%.

What fails on a R125 (YZF 125-A)

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	49	40.2
structure and attachments	32	26.2
brakes	15	12.3
steering	12	9.8
tyres	6	4.9
Identification of the vehicle	4	3.3
suspension	3	2.5
wheels	1	0.8

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the R125 (YZF 125-A) beats 3 of its 3 closest rivals (YAMAHA YZF-R125, HONDA CBR125R, HONDA CBR 125 R-4).

YAMAHA YZF-R125 68.0% pass · 63.7k tests HONDA CBR125R 66.8% pass · 26.5k tests HONDA CBR 125 R-4 65.1% pass · 6,736 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 R125 (YZF 125-A).

Pass rate by registration year

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

Best year to buy used: 2021 (79.7% pass). Weakest: 2022 (76.1%).

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.