BIKERELIABILITY Reg check
League table/ Ducati 888/vs Kawasaki ZX-9R
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Ducati 888 vs Kawasaki ZX-9R

The Ducati 888 passes its MOT first time more often than the Kawasaki ZX-9R: 88.9% vs 80.7%, a 8.2-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Ducati 888 Kawasaki ZX-9R
First-time pass rate 88.9% 80.7%
Outright fail rate 6.4% 12.0%
Vs comparable bikes (age & mileage adjusted) +5.1 pts -2.3 pts
Engine size 888cc 899cc
Rank among all models #1305 of 5428 #3439 of 5428
Median miles at test 19,378 22,320
MOT tests analysed 1,994 88,973
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.

"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 888 Kawasaki ZX-9R
Lights & signalling 3.6% 4.8%
Brakes 1.8% 4.6%
Steering & suspension 1.4% 4.0%
Tyres & wheels 0.7% 2.9%
Fuel & exhaust 0.4% 0.7%
Structure & body 0.1% 1.0%
Drive system 0.2% 0.7%

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 888 Kawasaki ZX-9R
2018 94.4% 80.9%
2019 92.6% 80.4%
2020 93.3% 80.6%
2021 91.0% 81.2%
2022 90.4% 82.9%
2023 94.6% 82.1%
2024 92.9% 81.7%
2025 93.4% 82.0%

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 888 Kawasaki ZX-9R
0k-10k miles 88.6% 88.6%
10k-20k miles 90.1% 83.6%
20k-30k miles 88.8% 79.4%
30k-40k miles 86.3% 77.1%
40k-50k miles 87.4% 74.5%

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

Ducati 888 vs Kawasaki ZX-9R FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Ducati 888 or the Kawasaki ZX-9R?

The Ducati 888 passes its MOT first time more often than the Kawasaki ZX-9R: 88.9% vs 80.7%, a 8.2-point lead. Adjusted for age, mileage and test class, the Ducati 888 still comes out ahead: +5.1 points vs comparable bikes for the Ducati 888, -2.3 for the Kawasaki ZX-9R. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Ducati 888 fail its MOT on most?

Lights & signalling: 3.6% of Ducati 888 MOT tests failed on it, then brakes (1.8%).

What does the Kawasaki ZX-9R fail its MOT on most?

Lights & signalling: 4.8% of Kawasaki ZX-9R MOT tests failed on it, then brakes (4.6%).

Which holds up better at high mileage, the Ducati 888 or the Kawasaki ZX-9R?

At 40k-50k miles the Ducati 888 passes first time more often: 87.4% for the Ducati 888 vs 74.5% for the Kawasaki ZX-9R.

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