BIKERELIABILITY Reg check
League table/ Honda SH 125 Ad-D/vs Gilera Runner
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Honda SH 125 Ad-D vs Gilera Runner

The Honda SH 125 Ad-D passes its MOT first time more often than the Gilera Runner: 82.7% vs 70.8%, a 11.9-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Honda SH 125 Ad-D Gilera Runner
First-time pass rate 82.7% 70.8%
Outright fail rate 10.0% 21.5%
Vs comparable bikes (age & mileage adjusted) +12.3 pts -0.7 pts
Engine size 125cc 124cc
Rank among all models #3029 of 5428 #4675 of 5428
Median miles at test 19,904 11,381
MOT tests analysed 2,498 69,850
Most common failure lamps and reflectors 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 SH 125 Ad-D Gilera Runner
Lights & signalling 5.8% 12.3%
Steering & suspension 2.4% 10.6%
Brakes 2.8% 7.2%
Tyres & wheels 3.2% 5.1%
Fuel & exhaust 0% 2.6%
Structure & body 0.5% 2.0%

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 SH 125 Ad-D Gilera Runner
2018 84.8% 77.2%
2019 79.1% 77.0%
2020 81.9% 75.8%
2021 83.5% 79.1%
2022 81.5% 80.5%
2023 73.7% 81.3%
2024 87.1% 84.0%
2025 83.9% 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 SH 125 Ad-D Gilera Runner
0k-10k miles 90.2% 76.2%
10k-20k miles 82.4% 67.5%
20k-30k miles 79.1% 65.4%
30k-40k miles 81.8% 67.2%
40k-50k miles 84.8% 68.1%
50k-60k miles 81.5% 67.8%

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

Honda SH 125 Ad-D vs Gilera Runner FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Honda SH 125 Ad-D or the Gilera Runner?

The Honda SH 125 Ad-D passes its MOT first time more often than the Gilera Runner: 82.7% vs 70.8%, a 11.9-point lead. Adjusted for age, mileage and test class, the Honda SH 125 Ad-D still comes out ahead: +12.3 points vs comparable bikes for the Honda SH 125 Ad-D, -0.7 for the Gilera Runner. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Honda SH 125 Ad-D fail its MOT on most?

Lights & signalling: 5.8% of Honda SH 125 Ad-D MOT tests failed on it, then tyres & wheels (3.2%).

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%).

Which holds up better at high mileage, the Honda SH 125 Ad-D or the Gilera Runner?

At 50k-60k miles the Honda SH 125 Ad-D passes first time more often: 81.5% for the Honda SH 125 Ad-D vs 67.8% for the Gilera Runner.

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