Hartford HD 125 S vs Gilera Runner

The Gilera Runner passes its MOT first time more often than the Hartford HD 125 S: 70.8% vs 66.1%, a 4.7-point lead.

MOT reliability, side by side

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

Metric	Hartford HD 125 S	Gilera Runner
First-time pass rate	66.1%	70.8%
Outright fail rate	22.7%	21.5%
Vs comparable bikes (age & mileage adjusted)	-5.6 pts	-0.7 pts
Engine size	124cc	124cc
Rank among all models	#4960 of 5428	#4675 of 5428
Median miles at test	12,163	11,381
MOT tests analysed	436	69,850
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.

Pass rate by test year

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

Test year	Hartford HD 125 S	Gilera Runner
2009	73.9%	67.1%
2010	80.0%	67.9%
2011	60.4%	67.6%
2012	71.8%	69.5%
2013	63.3%	69.5%
2014	53.8%	70.6%

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	Hartford HD 125 S	Gilera Runner
0k-10k miles	68.5%	76.2%
10k-20k miles	60.1%	67.5%
20k-30k miles	73.0%	65.4%

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

HARTFORD HD 125 S 66.1% pass · 436 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.