CCM 604 E vs Yamaha FZS600

The Yamaha FZS600 passes its MOT first time more often than the CCM 604 E: 82.6% vs 78.1%, a 4.5-point lead.

MOT reliability, side by side

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

Metric	CCM 604 E	Yamaha FZS600
First-time pass rate	78.1%	82.6%
Outright fail rate	11.8%	10.6%
Vs comparable bikes (age & mileage adjusted)	-9.1 pts	-0.8 pts
Engine size	598cc	599cc
Rank among all models	#3895 of 5428	#3052 of 5428
Median miles at test	6,280	21,612
MOT tests analysed	5,337	136,558
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	CCM 604 E	Yamaha FZS600
Lights & signalling	8.1%	3.4%
Brakes	1.9%	4.5%
Steering & suspension	3.7%	2.7%
Tyres & wheels	2.2%	2.9%
Fuel & exhaust	1.0%	1.1%
Drive system	0.9%	0.9%
Structure & body	0.7%	1.1%

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	Yamaha FZS600
2018	80.5%	81.3%
2019	81.8%	83.0%
2020	80.3%	83.6%
2021	81.6%	82.8%
2022	86.0%	83.6%
2023	84.1%	84.2%
2024	83.9%	83.3%
2025	89.0%	84.0%

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	CCM 604 E	Yamaha FZS600
0k-10k miles	78.9%	89.6%
10k-20k miles	77.0%	85.5%
20k-30k miles	71.4%	81.4%
30k-40k miles	78.9%	78.7%

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

CCM 604 E vs Yamaha FZS600 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the CCM 604 E or the Yamaha FZS600?

The Yamaha FZS600 passes its MOT first time more often than the CCM 604 E: 82.6% vs 78.1%, a 4.5-point lead. Adjusted for age, mileage and test class, the Yamaha FZS600 still comes out ahead: -9.1 points vs comparable bikes for the CCM 604 E, -0.8 for the Yamaha FZS600. 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 Yamaha FZS600 fail its MOT on most?

Brakes: 4.5% of Yamaha FZS600 MOT tests failed on it, then lights & signalling (3.4%).

Which holds up better at high mileage, the CCM 604 E or the Yamaha FZS600?

They are level: at 30k-40k miles the CCM 604 E passes 78.9% first time and the Yamaha FZS600 78.7%.

CCM 604 E 78.1% pass · 5,337 tests YAMAHA FZS600 82.6% pass · 137k tests

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