Honda C90M vs Yamaha YQ100

The Honda C90M passes its MOT first time more often than the Yamaha YQ100: 77.4% vs 64.7%, a 12.7-point lead.

MOT reliability, side by side

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

Metric	Honda C90M	Yamaha YQ100
First-time pass rate	77.4%	64.7%
Outright fail rate	14.5%	27.2%
Median miles at test	16,613	9,888
MOT tests analysed	974	7,747
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.

HONDA C90M 77.4% pass · 974 tests YAMAHA YQ100 64.7% pass · 7,747 tests

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