Triumph Cub vs Yamaha WR250F

The Triumph Cub passes its MOT first time more often than the Yamaha WR250F: 91.3% vs 78.0%, a 13.3-point lead.

MOT reliability, side by side

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

Metric	Triumph Cub	Yamaha WR250F
First-time pass rate	91.3%	78.0%
Outright fail rate	2.1%	12.8%
Median miles at test	7,325	3,018
MOT tests analysed	828	10,465
Most common failure	steering and suspension	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.

TRIUMPH CUB 91.3% pass · 828 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.