Baotian BT 125 vs Gilera Runner

The Gilera Runner passes its MOT first time more often than the Baotian BT 125: 70.8% vs 67.6%, a 3.2-point lead.

MOT reliability, side by side

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

Metric	Baotian BT 125	Gilera Runner
First-time pass rate	67.6%	70.8%
Outright fail rate	25.9%	21.5%
Vs comparable bikes (age & mileage adjusted)	-8.5 pts	-0.7 pts
Engine size	125cc	124cc
Rank among all models	#4877 of 5428	#4675 of 5428
Median miles at test	5,098	11,381
MOT tests analysed	903	69,850
Most common failure	lamps and reflectors	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	Baotian BT 125	Gilera Runner
Lights & signalling	13.7%	12.3%
Steering & suspension	14.4%	10.6%
Brakes	9.5%	7.2%
Tyres & wheels	6.9%	5.1%
Structure & body	5.3%	2.0%
Fuel & exhaust	1.1%	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	Baotian BT 125	Gilera Runner
2018	70.8%	77.2%
2019	65.8%	77.0%
2020	71.0%	75.8%
2021	65.5%	79.1%
2022	72.2%	80.5%
2023	60.0%	81.3%
2024	53.3%	84.0%
2025	69.2%	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	Baotian BT 125	Gilera Runner
0k-10k miles	68.2%	76.2%
10k-20k miles	65.5%	67.5%

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

Baotian BT 125 vs Gilera Runner FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Baotian BT 125 or the Gilera Runner?

The Gilera Runner passes its MOT first time more often than the Baotian BT 125: 70.8% vs 67.6%, a 3.2-point lead. Adjusted for age, mileage and test class, the Gilera Runner still comes out ahead: -8.5 points vs comparable bikes for the Baotian BT 125, -0.7 for the Gilera Runner. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Baotian BT 125 fail its MOT on most?

Steering & suspension: 14.4% of Baotian BT 125 MOT tests failed on it, then lights & signalling (13.7%).

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%).

BAOTIAN BT 125 67.6% pass · 903 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.