Royal Enfield Continental GT E4 vs Kawasaki ZX-6R

The Royal Enfield Continental GT E4 passes its MOT first time more often than the Kawasaki ZX-6R: 91.5% vs 78.1%, a 13.4-point lead.

MOT reliability, side by side

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

Metric	Royal Enfield Continental GT E4	Kawasaki ZX-6R
First-time pass rate	91.5%	78.1%
Outright fail rate	4.4%	14.0%
Vs comparable bikes (age & mileage adjusted)	+1.7 pts	-5.8 pts
Engine size	535cc	599cc
Rank among all models	#567 of 5428	#3895 of 5428
Median miles at test	2,630	19,446
MOT tests analysed	389	173,956
Most common failure	lamps and reflectors	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.

"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested

Test year	Royal Enfield Continental GT E4	Kawasaki ZX-6R
2020	93.6%	78.1%
2021	91.2%	78.6%
2022	89.3%	79.4%
2023	90.1%	79.8%
2024	98.3%	80.3%
2025	88.1%	81.1%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

ROYAL ENFIELD CONTINENTAL GT E4 91.5% pass · 389 tests KAWASAKI ZX-6R 78.1% pass · 174k tests

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