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

YAMAHA BW SPY

49cc Petrol Class 1
60.5%
first-time pass rate
33.4%
failed outright
7,995
median miles at test
314
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2009

The BW SPY's first-time pass rate has fallen 2.5 points since 2006, 59.6% to 57.1%.

55%58%61%2006: 59.6% pass (52 tests)2007: 58.5% pass (41 tests)2008: 55.9% pass (34 tests)2009: 57.1% pass (35 tests)20062009

What fails on a BW SPY

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
99 32.4
steering and suspension
89 29.1
brakes
56 18.3
tyres and wheels
27 8.8
fuel and exhaust
16 5.2
lamps and reflectors
6 2
body and structure
5 1.6
reg plates and vin
3 1
suspension
3 1
Items Not Tested
2 0.7

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 BW SPY beats 0 of its 4 closest rivals (PEUGEOT SPEEDFIGHT, PIAGGIO ZIP, PIAGGIO NRG).

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 BW SPY.

Pass rate by registration year

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

Best year to buy used: 1998 (61.5% pass). Weakest: 1998 (61.5%).

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.