Lifan LF 110 GY-3 Dax vs Yamaha YBR 125

The Lifan LF 110 GY-3 Dax passes its MOT first time more often than the Yamaha YBR 125: 79.0% vs 71.0%, a 8.0-point lead.

MOT reliability, side by side

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

Metric	Lifan LF 110 GY-3 Dax	Yamaha YBR 125
First-time pass rate	79.0%	71.0%
Outright fail rate	8.9%	17.1%
Vs comparable bikes (age & mileage adjusted)	+0.5 pts	-1.1 pts
Engine size	110cc	124cc
Rank among all models	#3771 of 5428	#4664 of 5428
Median miles at test	1,282	10,652
MOT tests analysed	428	124,897
Most common failure	lighting and signalling	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	Lifan LF 110 GY-3 Dax	Yamaha YBR 125
2010	75.7%	71.4%
2011	84.6%	69.1%
2012	83.3%	69.1%
2013	80.9%	69.5%
2014	72.7%	70.0%
2015	79.4%	71.2%

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

LIFAN LF 110 GY-3 DAX 79.0% pass · 428 tests YAMAHA YBR 125 71.0% pass · 125k tests

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