SYM Jet 50 - Euro X vs Peugeot Vivacity

The SYM Jet 50 - Euro X passes its MOT first time more often than the Peugeot Vivacity: 72.3% vs 70.4%, a 1.9-point lead.

MOT reliability, side by side

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

Metric	SYM Jet 50 - Euro X	Peugeot Vivacity
First-time pass rate	72.3%	70.4%
Outright fail rate	19.0%	21.7%
Vs comparable bikes (age & mileage adjusted)	+1.7 pts	-0.9 pts
Engine size	49cc	49cc
Rank among all models	#4556 of 5428	#4699 of 5428
Median miles at test	12,352	11,162
MOT tests analysed	4,412	29,731
Most common failure	lighting and signalling	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.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better

Component	SYM Jet 50 - Euro X	Peugeot Vivacity
Lights & signalling	11.4%	11.5%
Brakes	7.4%	8.6%
Steering & suspension	5.3%	10.5%
Tyres & wheels	3.1%	4.4%
Fuel & exhaust	3.3%	1.9%
Structure & body	2.2%	1.6%

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 Jet 50 - Euro X	Peugeot Vivacity
2017	78.3%	71.8%
2018	69.9%	74.1%
2019	77.5%	72.0%
2020	76.8%	71.5%
2021	70.7%	73.6%
2022	79.5%	71.4%
2023	75.0%	72.7%
2024	77.4%	74.7%

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 Jet 50 - Euro X	Peugeot Vivacity
0k-10k miles	78.7%	76.6%
10k-20k miles	69.2%	67.9%
20k-30k miles	65.7%	60.8%
30k-40k miles	69.5%	60.0%

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

SYM Jet 50 - Euro X vs Peugeot Vivacity FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the SYM Jet 50 - Euro X or the Peugeot Vivacity?

The SYM Jet 50 - Euro X passes its MOT first time more often than the Peugeot Vivacity: 72.3% vs 70.4%, a 1.9-point lead. Adjusted for age, mileage and test class, the SYM Jet 50 - Euro X still comes out ahead: +1.7 points vs comparable bikes for the SYM Jet 50 - Euro X, -0.9 for the Peugeot Vivacity. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the SYM Jet 50 - Euro X fail its MOT on most?

Lights & signalling: 11.4% of SYM Jet 50 - Euro X MOT tests failed on it, then brakes (7.4%).

What does the Peugeot Vivacity fail its MOT on most?

Lights & signalling: 11.5% of Peugeot Vivacity MOT tests failed on it, then steering & suspension (10.5%).

Which holds up better at high mileage, the SYM Jet 50 - Euro X or the Peugeot Vivacity?

At 30k-40k miles the SYM Jet 50 - Euro X passes first time more often: 69.5% for the SYM Jet 50 - Euro X vs 60.0% for the Peugeot Vivacity.

SYM JET 50 - EURO X 72.3% pass · 4,412 tests PEUGEOT VIVACITY 70.4% pass · 29.7k tests

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