Moto Roma Grandprix 125 vs Gilera Runner

The Gilera Runner passes its MOT first time more often than the Moto Roma Grandprix 125: 70.8% vs 68.6%, a 2.2-point lead.

MOT reliability, side by side

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

Metric	Moto Roma Grandprix 125	Gilera Runner
First-time pass rate	68.6%	70.8%
Outright fail rate	21.9%	21.5%
Vs comparable bikes (age & mileage adjusted)	-4.9 pts	-0.7 pts
Engine size	124cc	124cc
Rank among all models	#4820 of 5428	#4675 of 5428
Median miles at test	7,546	11,381
MOT tests analysed	430	69,850
Most common failure	brakes	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.

Pass rate by test year

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

Test year	Moto Roma Grandprix 125	Gilera Runner
2006	67.6%	70.5%
2008	69.2%	67.8%
2009	60.3%	67.1%
2010	71.0%	67.9%
2011	68.6%	67.6%
2012	70.6%	69.5%

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	Moto Roma Grandprix 125	Gilera Runner
0k-10k miles	69.5%	76.2%
10k-20k miles	69.0%	67.5%

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

MOTO ROMA GRANDPRIX 125 68.6% pass · 430 tests GILERA RUNNER 70.8% pass · 69.9k tests

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