BIKERELIABILITY Reg check
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Peugeot Speedfight 100 vs Honda PCX 125

The Honda PCX 125 passes its MOT first time more often than the Peugeot Speedfight 100: 81.1% vs 67.4%, a 13.7-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Peugeot Speedfight 100 Honda PCX 125
First-time pass rate 67.4% 81.1%
Outright fail rate 24.1% 12.9%
Vs comparable bikes (age & mileage adjusted) -3.0 pts +8.2 pts
Engine size 100cc 125cc
Rank among all models #4889 of 5428 #3358 of 5428
Median miles at test 12,619 16,405
MOT tests analysed 11,857 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 Peugeot Speedfight 100 Honda PCX 125
Lights & signalling 12.7% 3.9%
Brakes 9.1% 6.7%
Steering & suspension 11.0% 4.4%
Tyres & wheels 5.8% 5.3%
Fuel & exhaust 2.5% 0.0%
Structure & body 1.3% 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 Peugeot Speedfight 100 Honda PCX 125
2013 66.3% 85.2%
2014 67.5% 84.4%
2015 62.2% 83.5%
2016 69.1% 82.5%
2017 69.5% 80.5%
2018 64.6% 81.2%
2019 74.8% 79.9%

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 Peugeot Speedfight 100 Honda PCX 125
0k-10k miles 73.6% 88.4%
10k-20k miles 65.5% 79.3%
20k-30k miles 60.7% 78.0%
30k-40k miles 60.2% 77.0%
40k-50k miles 60.4% 74.8%

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

Peugeot Speedfight 100 vs Honda PCX 125 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Peugeot Speedfight 100 or the Honda PCX 125?

The Honda PCX 125 passes its MOT first time more often than the Peugeot Speedfight 100: 81.1% vs 67.4%, a 13.7-point lead. Adjusted for age, mileage and test class, the Honda PCX 125 still comes out ahead: -3.0 points vs comparable bikes for the Peugeot Speedfight 100, +8.2 for the Honda PCX 125. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Peugeot Speedfight 100 fail its MOT on most?

Lights & signalling: 12.7% of Peugeot Speedfight 100 MOT tests failed on it, then steering & suspension (11.0%).

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 Peugeot Speedfight 100 or the Honda PCX 125?

At 40k-50k miles the Honda PCX 125 passes first time more often: 60.4% for the Peugeot Speedfight 100 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.