BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HONDA/CB 650 RA-K
Model report · 2005–2025

HONDA CB 650 RA-K

649cc Petrol Class 2
88.6%
first-time pass rate
6.1%
failed outright
7,197
median miles at test
3,619
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2021–2025

The CB 650 RA-K's first-time pass rate has risen 4.3 points since 2021, 85.3% to 89.6%.

84%87%91%2021: 85.3% pass (34 tests)2022: 88.8% pass (690 tests)2023: 87.9% pass (1,097 tests)2024: 88.2% pass (884 tests)2025: 89.6% pass (912 tests)20212025

Pass rate by mileage

how the CB 650 RA-K's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage CB 650 RA-K passes first time 91.7% of the time; by 30k that's 79.3%.

74%84%95%0k: 91.7% pass (2,425 tests)10k: 83.6% pass (897 tests)20k: 76.9% pass (216 tests)30k: 79.3% pass (58 tests)0k20k30k

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 CB 650 RA-K

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
108 27.8 0.5×
suspension
80 20.6 2.7×
structure and attachments
59 15.2 1.9×
lamps and reflectors
52 13.4 0.8×
tyres
38 9.8 1.3×
steering
32 8.2 1.7×
Identification of the vehicle
18 4.6 2.0×
wheels
1 0.3 0.5×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the CB 650 RA-K beats 4 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

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 CB 650 RA-K.

Pass rate by registration year

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

Best year to buy used: 2019 (88.5% pass). Weakest: 2020 (88.4%).

88%88%89%2019: 88.5% pass (2,390 tests)2020: 88.4% pass (1,184 tests)20192020

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.

HONDA CB 650 RA-K FAQ

answers computed from the data above · terms in the glossary

Is the HONDA CB 650 RA-K reliable?

The HONDA CB 650 RA-K is more reliable than average for its class: 88.6% of its 3,619 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1400 of 5426 models.

What does a CB 650 RA-K fail its MOT on most?

brakes — 28% of all defects recorded against failed CB 650 RA-K tests.

How many miles will a CB 650 RA-K last?

The median CB 650 RA-K shows 7,197 miles at test, and examples around 30k miles still pass 79.3% of the time — mileage alone rarely kills one.