Suzuki AN400 vs Royal Enfield Bullet 500

The Royal Enfield Bullet 500 passes its MOT first time more often than the Suzuki AN400 — 88.2% vs 86.2%, a 2.0-point lead.

MOT reliability, side by side

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

Metric	Suzuki AN400	Royal Enfield Bullet 500
First-time pass rate	86.2%	88.2%
Outright fail rate	9.8%	5.2%
Median miles at test	15,861	6,826
MOT tests analysed	27,056	25,698
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.

SUZUKI AN400 86.2% pass · 27.1k tests ROYAL ENFIELD BULLET 500 88.2% pass · 25.7k tests

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