Piaggio Vespa GTS 125 Super Sport vs Yamaha Nmax 125

The Piaggio Vespa GTS 125 Super Sport passes its MOT first time more often than the Yamaha Nmax 125: 87.3% vs 82.2%, a 5.1-point lead.

MOT reliability, side by side

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

Metric	Piaggio Vespa GTS 125 Super Sport	Yamaha Nmax 125
First-time pass rate	87.3%	82.2%
Outright fail rate	9.6%	11.4%
Vs comparable bikes (age & mileage adjusted)	+14.9 pts	+9.5 pts
Engine size	124cc	125cc
Rank among all models	#1818 of 5428	#3145 of 5428
Median miles at test	10,547	30,236
MOT tests analysed	387	33,779
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.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested

Test year	Piaggio Vespa GTS 125 Super Sport	Yamaha Nmax 125
2017	91.7%	81.1%
2024	85.0%	79.8%
2025	90.0%	80.8%

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	Piaggio Vespa GTS 125 Super Sport	Yamaha Nmax 125
0k-10k miles	94.7%	90.9%
10k-20k miles	83.9%	84.2%
20k-30k miles	74.5%	81.9%

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

PIAGGIO VESPA GTS 125 SUPER SPORT 87.3% pass · 387 tests YAMAHA NMAX 125 82.2% pass · 33.8k tests

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