BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
85.4%
first-time pass rate
9.9%
failed outright
17,754
median miles at test
302
MOT tests, 2005–2025

Pass rate by mileage

how the CB600S's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage CB600S passes first time 94.0% of the time; by 20k that's 73.8%.

70%84%98%0k: 94.0% pass (50 tests)10k: 87.6% pass (137 tests)20k: 73.8% pass (65 tests)0k10k20k

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a CB600S

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
steering and suspension
14 27.5
lighting and signalling
12 23.5
tyres and wheels
11 21.6
brakes
8 15.7
tyres
2 3.9
lamps and reflectors
1 2
drive system
1 2
driving controls
1 2
body and structure
1 2

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the CB600S beats 2 of its 4 closest rivals (HONDA CB500, TRIUMPH STREET TRIPLE, HONDA CB600 HORNET).

Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the CB600S.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 2000 (88.1% pass). Weakest: 2002 (84.6%).

84%86%89%2000: 88.1% pass (126 tests)2001: 85.4% pass (82 tests)2002: 84.6% pass (65 tests)200020012002

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.