Kawasaki Er 400 DKF vs Suzuki GS500

The Kawasaki Er 400 DKF passes its MOT first time more often than the Suzuki GS500 — 93.9% vs 76.4%, a 17.5-point lead.

MOT reliability, side by side

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

Metric	Kawasaki Er 400 DKF	Suzuki GS500
First-time pass rate	93.9%	76.4%
Outright fail rate	2.0%	15.0%
Median miles at test	4,268	21,676
MOT tests analysed	444	44,924
Most common failure	brakes	brakes

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.

KAWASAKI ER 400 DKF 93.9% pass · 444 tests SUZUKI GS500 76.4% pass · 44.9k tests

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