BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
80.7%
first-time pass rate
9.2%
failed outright
26,766
median miles at test
574
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2017

The CB750K's first-time pass rate has risen 4.2 points since 2006, 79.6% to 83.8%.

61%79%97%2006: 79.6% pass (49 tests)2007: 90.9% pass (33 tests)2008: 75.6% pass (41 tests)2009: 77.1% pass (48 tests)2010: 82.9% pass (41 tests)2011: 77.5% pass (40 tests)2012: 82.4% pass (34 tests)2013: 79.4% pass (34 tests)2014: 66.7% pass (45 tests)2015: 85.4% pass (48 tests)2016: 81.3% pass (48 tests)2017: 83.8% pass (37 tests)20062017

Pass rate by mileage

how the CB750K's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage CB750K passes first time 87.3% of the time; by 50k that's 81.4%.

69%80%90%0k: 87.3% pass (79 tests)10k: 83.3% pass (102 tests)20k: 82.9% pass (164 tests)30k: 71.8% pass (103 tests)40k: 78.4% pass (37 tests)50k: 81.4% pass (43 tests)0k30k50k

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 CB750K

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
steering and suspension
42 30.4 1.4×
lighting and signalling
35 25.4 1.0×
brakes
25 18.1 0.8×
tyres and wheels
13 9.4 0.9×
body and structure
8 5.8 2.5×
fuel and exhaust
5 3.6 0.9×
driving controls
4 2.9 3.0×
reg plates and vin
3 2.2 0.6×
suspension
2 1.4 0.2×
Items Not Tested
1 0.7 1.9×

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 CB750K 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 CB750K.

Pass rate by registration year

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

Best year to buy used: 1980 (83.5% pass). Weakest: 1978 (68.9%).

66%76%86%1978: 68.9% pass (74 tests)1979: 77.5% pass (191 tests)1980: 83.5% pass (91 tests)197819791980

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 CB750K FAQ

answers computed from the data above · terms in the glossary

Is the HONDA CB750K reliable?

The HONDA CB750K is less reliable than average for its class: 80.7% of its 574 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #3440 of 5426 models.

What does a CB750K fail its MOT on most?

steering and suspension — 30% of all defects recorded against failed CB750K tests.

What is the best year of CB750K to buy used?

By first-time pass rate, 1980-registered examples do best (83.5%) and 1978 worst (68.9%). Condition and history still trump the year.

How many miles will a CB750K last?

The median CB750K shows 26,766 miles at test, and examples around 50k miles still pass 81.4% of the time — mileage alone rarely kills one.