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

HONDA SFX50

49cc Petrol Class 1
73.9%
first-time pass rate
17.5%
failed outright
8,808
median miles at test
907
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2011

The SFX50's first-time pass rate has risen 11.3 points since 2005, 66.0% to 77.3%.

62%73%84%2005: 66.0% pass (50 tests)2006: 80.2% pass (202 tests)2007: 70.2% pass (181 tests)2008: 68.0% pass (125 tests)2009: 69.1% pass (68 tests)2010: 78.4% pass (37 tests)2011: 77.3% pass (44 tests)20052011

Pass rate by mileage

how the SFX50's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage SFX50 passes first time 75.1% of the time; by 20k that's 77.4%.

68%74%79%0k: 75.1% pass (527 tests)10k: 69.7% pass (300 tests)20k: 77.4% pass (62 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 SFX50

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
145 34.1 2.1×
brakes
107 25.2 2.0×
steering and suspension
80 18.8 2.2×
tyres and wheels
48 11.3 2.4×
fuel and exhaust
20 4.7 2.8×
reg plates and vin
7 1.6 1.2×
body and structure
7 1.6 1.6×
steering
4 0.9 0.5×
lamps and reflectors
4 0.9 0.1×
structure and attachments
3 0.7 0.3×

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 SFX50 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 SFX50.

Pass rate by registration year

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

Best year to buy used: 1998 (87.1% pass). Weakest: 2001 (59.8%).

54%73%93%1997: 60.0% pass (50 tests)1998: 87.1% pass (62 tests)1999: 75.3% pass (174 tests)2000: 73.2% pass (198 tests)2001: 59.8% pass (92 tests)2002: 76.5% pass (102 tests)2003: 78.7% pass (169 tests)199720002003

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 SFX50 FAQ

answers computed from the data above · terms in the glossary

Is the HONDA SFX50 reliable?

The HONDA SFX50 is about average for its class: 73.9% of its 907 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4406 of 5426 models.

What does a SFX50 fail its MOT on most?

lighting and signalling — 34% of all defects recorded against failed SFX50 tests.

What is the best year of SFX50 to buy used?

By first-time pass rate, 1998-registered examples do best (87.1%) and 2001 worst (59.8%). Condition and history still trump the year.

How many miles will a SFX50 last?

The median SFX50 shows 8,808 miles at test, and examples around 20k miles still pass 77.4% of the time — mileage alone rarely kills one.