KTM 450 Exc-R vs Suzuki GS500

The KTM 450 Exc-R passes its MOT first time more often than the Suzuki GS500 — 78.3% vs 76.4%, a 1.9-point lead.

MOT reliability, side by side

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

Metric	KTM 450 Exc-R	Suzuki GS500
First-time pass rate	78.3%	76.4%
Outright fail rate	11.9%	15.0%
Median miles at test	3,080	21,676
MOT tests analysed	2,071	44,924
Most common failure	lighting and signalling	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.

KTM 450 EXC-R 78.3% pass · 2,071 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.