BIKERELIABILITY Reg check
League table/ Sinnis Matrix 3I/vs Honda CG125
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Sinnis Matrix 3I vs Honda CG125

The Honda CG125 passes its MOT first time more often than the Sinnis Matrix 3I: 72.2% vs 67.8%, a 4.4-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Sinnis Matrix 3I Honda CG125
First-time pass rate 67.8% 72.2%
Outright fail rate 24.4% 16.8%
Vs comparable bikes (age & mileage adjusted) -6.1 pts +0.7 pts
Engine size 125cc 124cc
Median miles at test 7,432 17,460
MOT tests analysed 180 89,345
Most common failure brakes 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.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year Sinnis Matrix 3I Honda CG125
2022 62.2% 73.5%
2023 76.6% 74.4%
2024 65.9% 73.0%
2025 60.0% 76.4%

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 Sinnis Matrix 3I Honda CG125
0k-10k miles 69.6% 79.3%
10k-20k miles 64.7% 73.0%

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

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