Scomadi TT 125 vs Yamaha Nmax 125

The Scomadi TT 125 passes its MOT first time more often than the Yamaha Nmax 125: 85.3% vs 82.2%, a 3.1-point lead.

MOT reliability, side by side

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

Metric	Scomadi TT 125	Yamaha Nmax 125
First-time pass rate	85.3%	82.2%
Outright fail rate	8.5%	11.4%
Vs comparable bikes (age & mileage adjusted)	+6.3 pts	+9.5 pts
Engine size	125cc	125cc
Rank among all models	#2411 of 5428	#3145 of 5428
Median miles at test	2,196	30,236
MOT tests analysed	422	33,779
Most common failure	tyres	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	Scomadi TT 125	Yamaha Nmax 125
2021	89.4%	84.9%
2022	81.0%	83.5%
2023	87.3%	81.5%
2024	84.3%	79.8%
2025	86.0%	80.8%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

SCOMADI TT 125 85.3% pass · 422 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.