BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ HONDA/CB750 FOUR
Model report · 2005–2025
81.0%
first-time pass rate
9.9%
failed outright
26,246
median miles at test
242
MOT tests, 2005–2025

Pass rate by mileage

how the CB750 FOUR's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage CB750 FOUR passes first time 77.9% of the time; by 30k that's 81.6%.

76%79%83%10k: 77.9% pass (68 tests)20k: 76.7% pass (60 tests)30k: 81.6% pass (38 tests)10k20k30k

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 CB750 FOUR

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
19 43.2
brakes
9 20.5
steering and suspension
8 18.2
fuel and exhaust
3 6.8
tyres and wheels
2 4.5
sidecar
1 2.3
reg plates and vin
1 2.3
drive system
1 2.3

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 CB750 FOUR beats 1 of its 4 closest rivals (TRIUMPH STREET TRIPLE, HONDA CB600 HORNET, TRIUMPH TRIDENT).

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 CB750 FOUR.

Pass rate by registration year

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

Best year to buy used: 1975 (85.7% pass). Weakest: 1975 (85.7%).

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.