BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ YAMAHA/XF 50 GIGGLE
Model report · 2005–2025

YAMAHA XF 50 GIGGLE

49cc Petrol Class 1
86.2%
first-time pass rate
8.1%
failed outright
6,583
median miles at test
1,129
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2011–2025

The XF 50 GIGGLE's first-time pass rate has fallen 10.0 points since 2011, 87.5% to 77.5%.

73%86%100%2011: 87.5% pass (72 tests)2012: 83.7% pass (98 tests)2013: 85.0% pass (113 tests)2014: 88.3% pass (111 tests)2015: 84.9% pass (106 tests)2016: 87.5% pass (104 tests)2017: 87.1% pass (93 tests)2018: 96.5% pass (57 tests)2019: 90.3% pass (62 tests)2020: 82.1% pass (56 tests)2021: 89.4% pass (66 tests)2022: 79.7% pass (59 tests)2023: 84.3% pass (51 tests)2024: 82.9% pass (35 tests)2025: 77.5% pass (40 tests)20112025

Pass rate by mileage

how the XF 50 GIGGLE's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage XF 50 GIGGLE passes first time 88.3% of the time; by 20k that's 86.7%.

80%85%90%0k: 88.3% pass (771 tests)10k: 81.3% pass (288 tests)20k: 86.7% pass (45 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 XF 50 GIGGLE

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
tyres and wheels
28 17.3 1.0×
lighting and signalling
25 15.4 0.5×
lamps and reflectors
22 13.6 0.9×
brakes
22 13.6 0.3×
steering and suspension
17 10.5 0.4×
tyres
17 10.5 1.9×
suspension
14 8.6 1.3×
fuel and exhaust
7 4.3 0.8×
structure and attachments
6 3.7 0.6×
reg plates and vin
4 2.5 0.6×

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 XF 50 GIGGLE beats 4 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 XF 50 GIGGLE.

Pass rate by registration year

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

Best year to buy used: 2011 (96.1% pass). Weakest: 2008 (81.6%).

79%89%99%2008: 81.6% pass (577 tests)2009: 90.0% pass (280 tests)2010: 88.6% pass (114 tests)2011: 96.1% pass (77 tests)200820102011

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.

YAMAHA XF 50 GIGGLE FAQ

answers computed from the data above · terms in the glossary

Is the YAMAHA XF 50 GIGGLE reliable?

The YAMAHA XF 50 GIGGLE is more reliable than average for its class: 86.2% of its 1,129 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #2146 of 5426 models.

What does a XF 50 GIGGLE fail its MOT on most?

tyres and wheels — 17% of all defects recorded against failed XF 50 GIGGLE tests.

What is the best year of XF 50 GIGGLE to buy used?

By first-time pass rate, 2011-registered examples do best (96.1%) and 2008 worst (81.6%). Condition and history still trump the year.

How many miles will a XF 50 GIGGLE last?

The median XF 50 GIGGLE shows 6,583 miles at test, and examples around 20k miles still pass 86.7% of the time — mileage alone rarely kills one.