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

Data as of: DVSA MOT results to 2025

Lambretta LI125 Series 3 vs Honda PCX 125

The Lambretta LI125 Series 3 passes its MOT first time more often than the Honda PCX 125: 88.6% vs 81.1%, a 7.5-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Lambretta LI125 Series 3 Honda PCX 125
First-time pass rate 88.6% 81.1%
Outright fail rate 6.6% 12.9%
Engine size 125cc 125cc
Rank among all models #1402 of 5428 #3358 of 5428
Median miles at test 1,240 16,405
MOT tests analysed 317 88,608
Most common failure brakes 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.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year Lambretta LI125 Series 3 Honda PCX 125
2015 87.2% 83.5%
2016 84.6% 82.5%
2017 93.7% 80.5%
2018 90.3% 81.2%

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 Lambretta LI125 Series 3 Honda PCX 125
0k-10k miles 87.7% 88.4%
10k-20k miles 93.0% 79.3%
20k-30k miles 84.8% 78.0%

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.