BIKERELIABILITY Reg check
League table/ Honda Z 125 Ma-K/vs Gilera Runner
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Honda Z 125 Ma-K vs Gilera Runner

The Honda Z 125 Ma-K passes its MOT first time more often than the Gilera Runner: 94.1% vs 70.8%, a 23.3-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Honda Z 125 Ma-K Gilera Runner
First-time pass rate 94.1% 70.8%
Outright fail rate 1.8% 21.5%
Vs comparable bikes (age & mileage adjusted) +14.6 pts -0.7 pts
Engine size 125cc 124cc
Rank among all models #153 of 5428 #4675 of 5428
Median miles at test 1,701 11,381
MOT tests analysed 4,239 69,850
Most common failure structure and attachments lighting and signalling

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 Z 125 Ma-K Gilera Runner
Lights & signalling 0.7% 12.3%
Steering & suspension 0.4% 10.6%
Brakes 0.1% 7.2%
Tyres & wheels 0.2% 5.1%
Structure & body 0.7% 2.0%
Fuel & exhaust 0% 2.6%

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 Z 125 Ma-K Gilera Runner
2021 93.3% 79.1%
2022 93.1% 80.5%
2023 94.5% 81.3%
2024 94.2% 84.0%
2025 94.7% 85.5%

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 Z 125 Ma-K Gilera Runner
0k-10k miles 94.4% 76.2%
10k-20k miles 88.0% 67.5%

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

Honda Z 125 Ma-K vs Gilera Runner FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Honda Z 125 Ma-K or the Gilera Runner?

The Honda Z 125 Ma-K passes its MOT first time more often than the Gilera Runner: 94.1% vs 70.8%, a 23.3-point lead. Adjusted for age, mileage and test class, the Honda Z 125 Ma-K still comes out ahead: +14.6 points vs comparable bikes for the Honda Z 125 Ma-K, -0.7 for the Gilera Runner. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Honda Z 125 Ma-K fail its MOT on most?

Lights & signalling: 0.7% of Honda Z 125 Ma-K MOT tests failed on it, then structure & body (0.7%).

What does the Gilera Runner fail its MOT on most?

Lights & signalling: 12.3% of Gilera Runner MOT tests failed on it, then steering & suspension (10.6%).

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