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

Sinnis ZS 125-86 Terrain vs Honda CG125

The Honda CG125 passes its MOT first time more often than the Sinnis ZS 125-86 Terrain — 72.2% vs 70.8%, a 1.4-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Sinnis ZS 125-86 Terrain Honda CG125
First-time pass rate 70.8% 72.2%
Outright fail rate 21.3% 16.8%
Median miles at test 7,930 17,460
MOT tests analysed 2,152 89,345
Most common failure brakes 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.

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