Lexmoto Viper SK 125-22A vs Honda PCX 125

The Honda PCX 125 passes its MOT first time more often than the Lexmoto Viper SK 125-22A: 81.1% vs 58.6%, a 22.5-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025

Metric	Lexmoto Viper SK 125-22A	Honda PCX 125
First-time pass rate	58.6%	81.1%
Outright fail rate	30.0%	12.9%
Vs comparable bikes (age & mileage adjusted)	-18.2 pts	+8.2 pts
Engine size	124cc	125cc
Rank among all models	#5256 of 5428	#3358 of 5428
Median miles at test	6,893	16,405
MOT tests analysed	1,101	88,608
Most common failure	lamps and reflectors	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	Lexmoto Viper SK 125-22A	Honda PCX 125
Lights & signalling	20.4%	3.9%
Brakes	15.3%	6.7%
Steering & suspension	10.8%	4.4%
Structure & body	12.0%	0.7%
Tyres & wheels	3.0%	5.3%

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	Lexmoto Viper SK 125-22A	Honda PCX 125
2020	78.2%	82.3%
2021	58.8%	80.3%
2022	56.8%	80.3%
2023	52.8%	80.2%
2024	59.8%	80.9%
2025	58.5%	81.6%

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	Lexmoto Viper SK 125-22A	Honda PCX 125
0k-10k miles	59.9%	88.4%
10k-20k miles	52.4%	79.3%

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

Lexmoto Viper SK 125-22A vs Honda PCX 125 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Lexmoto Viper SK 125-22A or the Honda PCX 125?

The Honda PCX 125 passes its MOT first time more often than the Lexmoto Viper SK 125-22A: 81.1% vs 58.6%, a 22.5-point lead. Adjusted for age, mileage and test class, the Honda PCX 125 still comes out ahead: -18.2 points vs comparable bikes for the Lexmoto Viper SK 125-22A, +8.2 for the Honda PCX 125. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Lexmoto Viper SK 125-22A fail its MOT on most?

Lights & signalling: 20.4% of Lexmoto Viper SK 125-22A MOT tests failed on it, then brakes (15.3%).

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%).

LEXMOTO VIPER SK 125-22A 58.6% pass · 1,101 tests HONDA PCX 125 81.1% pass · 88.6k tests

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