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

Data as of: DVSA MOT results to 2025

Shineray XY 125 GY Viii vs Honda CBF125

The Honda CBF125 passes its MOT first time more often than the Shineray XY 125 GY Viii: 73.3% vs 60.6%, a 12.7-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Shineray XY 125 GY Viii Honda CBF125
First-time pass rate 60.6% 73.3%
Outright fail rate 28.7% 16.5%
Vs comparable bikes (age & mileage adjusted) -17.3 pts +1.1 pts
Engine size 120cc 125cc
Rank among all models #5191 of 5428 #4471 of 5428
Median miles at test 606 10,974
MOT tests analysed 289 84,425
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 Shineray XY 125 GY Viii Honda CBF125
2011 47.5% 69.3%
2013 70.3% 73.5%
2014 52.6% 72.0%
2015 60.0% 71.8%
2016 61.3% 72.2%

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

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