BIKERELIABILITY Reg check
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Taiwan Golden Bee BR8 R125X vs Yamaha YBR 125

The Taiwan Golden Bee BR8 R125X passes its MOT first time more often than the Yamaha YBR 125: 76.1% vs 71.0%, a 5.1-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Taiwan Golden Bee BR8 R125X Yamaha YBR 125
First-time pass rate 76.1% 71.0%
Outright fail rate 20.2% 17.1%
Vs comparable bikes (age & mileage adjusted) +1.0 pts -1.1 pts
Engine size 124cc 124cc
Median miles at test 5,311 10,652
MOT tests analysed 109 124,897
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.

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