HONDA CB650SC-C

638cc Petrol Class 2

#3719 of 5426 overall #670 of 921 HONDAs #176 of 205 naked bikes

79.3%

first-time pass rate

12.3%

failed outright

26,698

median miles at test

367

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2011

The CB650SC-C's first-time pass rate has fallen 7.9 points since 2006, 82.9% to 75.0%.

Pass rate by mileage

how the CB650SC-C's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage CB650SC-C passes first time 77.6% of the time; by 40k that's 66.7%.

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 CB650SC-C

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	29	31.5
steering and suspension	24	26.1
brakes	14	15.2
tyres and wheels	5	5.4
reg plates and vin	5	5.4
body and structure	4	4.3
fuel and exhaust	3	3.3
Items Not Tested	3	3.3
suspension	3	3.3
driving controls	2	2.2

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 CB650SC-C beats 1 of its 4 closest rivals (HONDA CB500, TRIUMPH STREET TRIPLE, HONDA CB600 HORNET).

HONDA CB500 83.3% pass · 105k tests TRIUMPH STREET TRIPLE 87.7% pass · 37.7k tests HONDA CB600 HORNET 78.6% pass · 26.4k tests TRIUMPH STREET TRIPLE R 87.7% pass · 20.6k tests

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 CB650SC-C.

Pass rate by registration year

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

Best year to buy used: 1983 (78.4% pass). Weakest: 1983 (78.4%).

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.