BIKERELIABILITY Reg check
League table/ CCM 604 E/vs Kawasaki ZX-6R
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

CCM 604 E vs Kawasaki ZX-6R

The CCM 604 E and Kawasaki ZX-6R have an identical 78.1% first-time MOT pass rate.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric CCM 604 E Kawasaki ZX-6R
First-time pass rate 78.1% 78.1%
Outright fail rate 11.8% 14.0%
Vs comparable bikes (age & mileage adjusted) -9.1 pts -5.8 pts
Engine size 598cc 599cc
Rank among all models #3895 of 5428 #3895 of 5428
Median miles at test 6,280 19,446
MOT tests analysed 5,337 173,956
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 CCM 604 E Kawasaki ZX-6R
Lights & signalling 8.1% 6.1%
Steering & suspension 3.7% 4.6%
Brakes 1.9% 5.2%
Tyres & wheels 2.2% 3.6%
Drive system 0.9% 1.0%
Structure & body 0.7% 1.2%
Fuel & exhaust 1.0% 0.8%

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 CCM 604 E Kawasaki ZX-6R
2018 80.5% 78.5%
2019 81.8% 78.5%
2020 80.3% 78.1%
2021 81.6% 78.6%
2022 86.0% 79.4%
2023 84.1% 79.8%
2024 83.9% 80.3%
2025 89.0% 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 CCM 604 E Kawasaki ZX-6R
0k-10k miles 78.9% 86.1%
10k-20k miles 77.0% 80.6%
20k-30k miles 71.4% 75.4%
30k-40k miles 78.9% 71.8%

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

CCM 604 E vs Kawasaki ZX-6R FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the CCM 604 E or the Kawasaki ZX-6R?

The CCM 604 E and Kawasaki ZX-6R have an identical 78.1% first-time MOT pass rate. Adjusted for age, mileage and test class, the Kawasaki ZX-6R still comes out ahead: -9.1 points vs comparable bikes for the CCM 604 E, -5.8 for the Kawasaki ZX-6R. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the CCM 604 E fail its MOT on most?

Lights & signalling: 8.1% of CCM 604 E MOT tests failed on it, then steering & suspension (3.7%).

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 CCM 604 E or the Kawasaki ZX-6R?

At 30k-40k miles the CCM 604 E passes first time more often: 78.9% for the CCM 604 E vs 71.8% for the Kawasaki ZX-6R.

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