Zontes Scorpion 125 vs Gilera Runner

The Gilera Runner passes its MOT first time more often than the Zontes Scorpion 125: 70.8% vs 57.8%, a 13.0-point lead.

MOT reliability, side by side

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

Metric	Zontes Scorpion 125	Gilera Runner
First-time pass rate	57.8%	70.8%
Outright fail rate	29.8%	21.5%
Vs comparable bikes (age & mileage adjusted)	-17.0 pts	-0.7 pts
Engine size	124cc	124cc
Rank among all models	#5282 of 5428	#4675 of 5428
Median miles at test	5,807	11,381
MOT tests analysed	540	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.

What fails, side by side

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

Component	Zontes Scorpion 125	Gilera Runner
Lights & signalling	17.4%	12.3%
Brakes	17.8%	7.2%
Steering & suspension	10.9%	10.6%
Structure & body	11.5%	2.0%
Tyres & wheels	4.4%	5.1%
Fuel & exhaust	0%	2.6%

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	Zontes Scorpion 125	Gilera Runner
2020	59.0%	75.8%
2021	57.7%	79.1%
2022	60.6%	80.5%
2023	60.3%	81.3%
2024	52.9%	84.0%
2025	54.2%	85.5%

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	Zontes Scorpion 125	Gilera Runner
0k-10k miles	60.4%	76.2%
10k-20k miles	52.8%	67.5%

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

Zontes Scorpion 125 vs Gilera Runner FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Zontes Scorpion 125 or the Gilera Runner?

The Gilera Runner passes its MOT first time more often than the Zontes Scorpion 125: 70.8% vs 57.8%, a 13.0-point lead. Adjusted for age, mileage and test class, the Gilera Runner still comes out ahead: -17.0 points vs comparable bikes for the Zontes Scorpion 125, -0.7 for the Gilera Runner. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Zontes Scorpion 125 fail its MOT on most?

Brakes: 17.8% of Zontes Scorpion 125 MOT tests failed on it, then lights & signalling (17.4%).

What does the Gilera Runner fail its MOT on most?

Lights & signalling: 12.3% of Gilera Runner MOT tests failed on it, then steering & suspension (10.6%).

ZONTES SCORPION 125 57.8% pass · 540 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.