BIKERELIABILITY Reg check
League table/ Honda XL125V/vs Yamaha YBR 125
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Honda XL125V vs Yamaha YBR 125

The Honda XL125V passes its MOT first time more often than the Yamaha YBR 125: 71.2% vs 71.0%, a 0.2-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Honda XL125V Yamaha YBR 125
First-time pass rate 71.2% 71.0%
Outright fail rate 20.4% 17.1%
Vs comparable bikes (age & mileage adjusted) +0.9 pts -1.1 pts
Engine size 125cc 124cc
Rank among all models #4640 of 5428 #4664 of 5428
Median miles at test 16,087 10,652
MOT tests analysed 26,407 124,897
Most common failure brakes brakes

First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.

"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better
Component Honda XL125V Yamaha YBR 125
Brakes 11.0% 5.9%
Lights & signalling 8.0% 8.5%
Steering & suspension 8.1% 6.5%
Tyres & wheels 3.7% 4.4%
Drive system 3.8% 2.9%
Structure & body 2.3% 3.8%
Fuel & exhaust 0.8% 0.6%

A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year Honda XL125V Yamaha YBR 125
2018 70.3% 72.0%
2019 71.5% 71.8%
2020 70.3% 73.4%
2021 69.7% 71.6%
2022 70.9% 71.3%
2023 73.0% 71.1%
2024 73.4% 70.9%
2025 72.0% 71.2%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test
Mileage Honda XL125V Yamaha YBR 125
0k-10k miles 79.9% 76.8%
10k-20k miles 70.8% 67.4%
20k-30k miles 66.4% 63.8%
30k-40k miles 64.3% 62.2%
40k-50k miles 63.1% 63.4%
50k-60k miles 66.0% 63.6%

Bands with fewer than 30 tests for either bike are left out.

Honda XL125V vs Yamaha YBR 125 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Honda XL125V or the Yamaha YBR 125?

The Honda XL125V passes its MOT first time more often than the Yamaha YBR 125: 71.2% vs 71.0%, a 0.2-point lead. Adjusted for age, mileage and test class, the Honda XL125V still comes out ahead: +0.9 points vs comparable bikes for the Honda XL125V, -1.1 for the Yamaha YBR 125. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Honda XL125V fail its MOT on most?

Brakes: 11.0% of Honda XL125V MOT tests failed on it, then steering & suspension (8.1%).

What does the Yamaha YBR 125 fail its MOT on most?

Lights & signalling: 8.5% of Yamaha YBR 125 MOT tests failed on it, then steering & suspension (6.5%).

Which holds up better at high mileage, the Honda XL125V or the Yamaha YBR 125?

At 50k-60k miles the Honda XL125V passes first time more often: 66.0% for the Honda XL125V vs 63.6% for the Yamaha YBR 125.

See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.