Zontes ZT 125-5A Monster vs Honda CB125F

The Honda CB125F passes its MOT first time more often than the Zontes ZT 125-5A Monster — 81.2% vs 57.6%, a 23.6-point lead.

MOT reliability, side by side

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

Metric	Zontes ZT 125-5A Monster	Honda CB125F
First-time pass rate	57.6%	81.2%
Outright fail rate	32.6%	11.1%
Median miles at test	9,587	8,847
MOT tests analysed	264	30,606
Most common failure	lighting and signalling	structure and attachments

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.

ZONTES ZT 125-5A MONSTER 57.6% pass · 264 tests HONDA CB125F 81.2% pass · 30.6k tests

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