BIKERELIABILITY Reg check
League table/ SYM Euro/vs Honda PCX 125
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

SYM Euro vs Honda PCX 125

The Honda PCX 125 passes its MOT first time more often than the SYM Euro: 81.1% vs 72.3%, a 8.8-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric SYM Euro Honda PCX 125
First-time pass rate 72.3% 81.1%
Outright fail rate 20.1% 12.9%
Vs comparable bikes (age & mileage adjusted) +1.9 pts +8.2 pts
Engine size 125cc 125cc
Rank among all models #4556 of 5428 #3358 of 5428
Median miles at test 14,168 16,405
MOT tests analysed 1,137 88,608
Most common failure lighting and signalling 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 SYM Euro Honda PCX 125
Lights & signalling 11.3% 3.9%
Brakes 8.0% 6.7%
Tyres & wheels 7.6% 5.3%
Steering & suspension 4.3% 4.4%
Fuel & exhaust 3.5% 0.0%
Structure & body 1.4% 0.7%

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 SYM Euro Honda PCX 125
2013 64.8% 85.2%
2014 74.0% 84.4%
2015 74.6% 83.5%
2016 61.1% 82.5%
2017 61.0% 80.5%

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 SYM Euro Honda PCX 125
0k-10k miles 83.8% 88.4%
10k-20k miles 71.6% 79.3%
20k-30k miles 62.6% 78.0%
30k-40k miles 55.8% 77.0%
40k-50k miles 59.5% 74.8%

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

SYM Euro vs Honda PCX 125 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the SYM Euro or the Honda PCX 125?

The Honda PCX 125 passes its MOT first time more often than the SYM Euro: 81.1% vs 72.3%, a 8.8-point lead. Adjusted for age, mileage and test class, the Honda PCX 125 still comes out ahead: +1.9 points vs comparable bikes for the SYM Euro, +8.2 for the Honda PCX 125. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the SYM Euro fail its MOT on most?

Lights & signalling: 11.3% of SYM Euro MOT tests failed on it, then brakes (8.0%).

What does the Honda PCX 125 fail its MOT on most?

Brakes: 6.7% of Honda PCX 125 MOT tests failed on it, then tyres & wheels (5.3%).

Which holds up better at high mileage, the SYM Euro or the Honda PCX 125?

At 40k-50k miles the Honda PCX 125 passes first time more often: 59.5% for the SYM Euro vs 74.8% for the Honda PCX 125.

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