BIKERELIABILITY Reg check
League table/ Ducati 600/vs Kawasaki ZX-6R
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Ducati 600 vs Kawasaki ZX-6R

The Ducati 600 passes its MOT first time more often than the Kawasaki ZX-6R: 81.9% vs 78.1%, a 3.8-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Ducati 600 Kawasaki ZX-6R
First-time pass rate 81.9% 78.1%
Outright fail rate 10.8% 14.0%
Vs comparable bikes (age & mileage adjusted) -2.7 pts -5.8 pts
Engine size 583cc 599cc
Rank among all models #3199 of 5428 #3895 of 5428
Median miles at test 15,590 19,446
MOT tests analysed 2,452 173,956
Most common failure lighting and signalling 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.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better
Component Ducati 600 Kawasaki ZX-6R
Lights & signalling 5.6% 6.1%
Steering & suspension 3.8% 4.6%
Brakes 2.5% 5.2%
Tyres & wheels 2.2% 3.6%
Drive system 1.1% 1.0%
Fuel & exhaust 0.8% 0.8%
Structure & body 0.4% 1.2%

A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year Ducati 600 Kawasaki ZX-6R
2018 82.0% 78.5%
2019 78.1% 78.5%
2020 92.3% 78.1%
2021 87.8% 78.6%
2022 88.9% 79.4%
2023 86.6% 79.8%
2024 92.3% 80.3%
2025 94.0% 81.1%

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

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test
Mileage Ducati 600 Kawasaki ZX-6R
0k-10k miles 84.4% 86.1%
10k-20k miles 82.0% 80.6%
20k-30k miles 84.4% 75.4%
30k-40k miles 63.9% 71.8%
40k-50k miles 68.3% 69.5%

Bands with fewer than 30 tests for either bike are left out.

Ducati 600 vs Kawasaki ZX-6R FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Ducati 600 or the Kawasaki ZX-6R?

The Ducati 600 passes its MOT first time more often than the Kawasaki ZX-6R: 81.9% vs 78.1%, a 3.8-point lead. Adjusted for age, mileage and test class, the Ducati 600 still comes out ahead: -2.7 points vs comparable bikes for the Ducati 600, -5.8 for the Kawasaki ZX-6R. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Ducati 600 fail its MOT on most?

Lights & signalling: 5.6% of Ducati 600 MOT tests failed on it, then steering & suspension (3.8%).

What does the Kawasaki ZX-6R fail its MOT on most?

Lights & signalling: 6.1% of Kawasaki ZX-6R MOT tests failed on it, then brakes (5.2%).

Which holds up better at high mileage, the Ducati 600 or the Kawasaki ZX-6R?

At 40k-50k miles the Kawasaki ZX-6R passes first time more often: 68.3% for the Ducati 600 vs 69.5% for the Kawasaki ZX-6R.

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