HONDA CBR 125 R-4 vs YAMAHA YZF-R125

The YAMAHA YZF-R125 passes its MOT first time more often than the HONDA CBR 125 R-4 — 68.0% vs 65.1%, a 2.9-point lead.

MOT reliability, side by side

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

Metric	HONDA CBR 125 R-4	YAMAHA YZF-R125
First-time pass rate	65.1%	68.0%
Outright fail rate	25.4%	21.6%
Median miles at test	12,971	13,002
MOT tests analysed	6,736	63,718
Most common failure	brakes	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.

HONDA CBR 125 R-4 65.1% pass · 6,736 tests YAMAHA YZF-R125 68.0% pass · 63.7k tests

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