Ajs Nac 12 vs Honda CG125

The Honda CG125 passes its MOT first time more often than the Ajs Nac 12 — 72.2% vs 61.3%, a 10.9-point lead.

MOT reliability, side by side

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

Metric	Ajs Nac 12	Honda CG125
First-time pass rate	61.3%	72.2%
Outright fail rate	21.8%	16.8%
Median miles at test	5,772	17,460
MOT tests analysed	463	89,345
Most common failure	lighting and signalling	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.

AJS NAC 12 61.3% pass · 463 tests HONDA CG125 72.2% pass · 89.3k tests

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