Beta Alp 4T-200 vs Yamaha WR250F

The Beta Alp 4T-200 passes its MOT first time more often than the Yamaha WR250F — 81.5% vs 78.0%, a 3.5-point lead.

MOT reliability, side by side

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

Metric	Beta Alp 4T-200	Yamaha WR250F
First-time pass rate	81.5%	78.0%
Outright fail rate	9.5%	12.8%
Median miles at test	3,872	3,018
MOT tests analysed	1,144	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.

BETA ALP 4T-200 81.5% pass · 1,144 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.