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

YAMAHA TY175

174cc Petrol Class 1
79.3%
first-time pass rate
9.3%
failed outright
1,178
median miles at test
334
MOT tests, 2005–2025

What fails on a TY175

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
29 38.2
tyres and wheels
16 21.1
steering and suspension
13 17.1
brakes
4 5.3
fuel and exhaust
3 3.9
drive system
3 3.9
Items Not Tested
3 3.9
reg plates and vin
3 3.9
driving controls
1 1.3
body and structure
1 1.3

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 TY175 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 TY175.

Pass rate by registration year

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

Best year to buy used: 1978 (80.3% pass). Weakest: 1980 (74.5%).

73%77%81%1978: 80.3% pass (71 tests)1980: 74.5% pass (51 tests)19781980

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.