MZ TS250 vs Yamaha WR250F

The MZ TS250 passes its MOT first time more often than the Yamaha WR250F — 88.4% vs 78.0%, a 10.4-point lead.

MOT reliability, side by side

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

Metric	MZ TS250	Yamaha WR250F
First-time pass rate	88.4%	78.0%
Outright fail rate	4.7%	12.8%
Median miles at test	22,824	3,018
MOT tests analysed	1,408	10,465
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.

MZ TS250 88.4% pass · 1,408 tests YAMAHA WR250F 78.0% pass · 10.5k tests

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