MZ ES250/2 vs Yamaha WR250F

The MZ ES250/2 passes its MOT first time more often than the Yamaha WR250F: 89.4% vs 78.0%, a 11.4-point lead.

MOT reliability, side by side

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

Metric	MZ ES250/2	Yamaha WR250F
First-time pass rate	89.4%	78.0%
Outright fail rate	2.6%	12.8%
Engine size	249cc	249cc
Median miles at test	11,558	3,018
MOT tests analysed	151	10,465
Most common failure	brakes	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.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test

Mileage	MZ ES250/2	Yamaha WR250F
0k-10k miles	91.7%	78.1%
10k-20k miles	93.2%	77.3%

Bands with fewer than 30 tests for either bike are left out.

MZ ES250/2 89.4% pass · 151 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.