CCM R30 vs Suzuki GSF600

The CCM R30 passes its MOT first time more often than the Suzuki GSF600: 81.5% vs 77.3%, a 4.2-point lead.

MOT reliability, side by side

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

Metric	CCM R30	Suzuki GSF600
First-time pass rate	81.5%	77.3%
Outright fail rate	9.4%	14.2%
Vs comparable bikes (age & mileage adjusted)	-6.0 pts	-6.1 pts
Engine size	598cc	599cc
Rank among all models	#3270 of 5428	#4013 of 5428
Median miles at test	6,371	21,080
MOT tests analysed	3,434	143,023
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 R30	Suzuki GSF600
Lights & signalling	5.9%	6.7%
Brakes	1.2%	6.1%
Steering & suspension	2.7%	3.6%
Tyres & wheels	1.8%	3.3%
Structure & body	1.0%	1.5%
Drive system	0.7%	1.4%
Fuel & exhaust	0.8%	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	CCM R30	Suzuki GSF600
2018	85.4%	77.7%
2019	86.1%	76.7%
2020	86.1%	77.8%
2021	84.8%	76.8%
2022	80.5%	78.1%
2023	85.0%	78.2%
2024	90.8%	78.9%
2025	83.5%	79.6%

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 R30	Suzuki GSF600
0k-10k miles	82.1%	86.8%
10k-20k miles	79.5%	80.1%
20k-30k miles	85.1%	75.2%

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

CCM R30 vs Suzuki GSF600 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the CCM R30 or the Suzuki GSF600?

The CCM R30 passes its MOT first time more often than the Suzuki GSF600: 81.5% vs 77.3%, a 4.2-point lead. Adjusted for age, mileage and test class the two are level (-6.0 vs -6.1 points against comparable bikes), so the raw gap is mostly down to how old and how used each fleet is. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the CCM R30 fail its MOT on most?

Lights & signalling: 5.9% of CCM R30 MOT tests failed on it, then steering & suspension (2.7%).

What does the Suzuki GSF600 fail its MOT on most?

Lights & signalling: 6.7% of Suzuki GSF600 MOT tests failed on it, then brakes (6.1%).

Which holds up better at high mileage, the CCM R30 or the Suzuki GSF600?

At 20k-30k miles the CCM R30 passes first time more often: 85.1% for the CCM R30 vs 75.2% for the Suzuki GSF600.

CCM R30 81.5% pass · 3,434 tests SUZUKI GSF600 77.3% pass · 143k tests

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