BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

CZ 175

174cc Petrol Class 1
#1693 of 5426 overall #1 of 3 CZs #1023 of 2787 other bikes
87.7%
first-time pass rate
6.5%
failed outright
11,389
median miles at test
324
MOT tests, 2005–2025

Pass rate by mileage

how the 175's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage 175 passes first time 87.0% of the time; by 20k that's 88.2%.

86%89%92%0k: 87.0% pass (146 tests)10k: 90.9% pass (121 tests)20k: 88.2% pass (34 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 175

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
15 31.2
steering and suspension
14 29.2
tyres and wheels
5 10.4
fuel and exhaust
3 6.2
brakes
3 6.2
body and structure
3 6.2
lamps and reflectors
2 4.2
structure and attachments
2 4.2
reg plates and vin
1 2.1

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 175 beats 0 of its 1 closest rivals (BSA BANTAM).

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 175.