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

HONDA SGX

49cc Petrol Class 1
76.1%
first-time pass rate
14.4%
failed outright
7,801
median miles at test
8,795
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2025

The SGX's first-time pass rate has fallen 13.0 points since 2005, 78.6% to 65.6%.

61%74%87%2005: 78.6% pass (313 tests)2006: 80.3% pass (1,206 tests)2007: 79.6% pass (1,038 tests)2008: 76.9% pass (903 tests)2009: 74.9% pass (794 tests)2010: 72.3% pass (723 tests)2011: 71.2% pass (670 tests)2012: 72.6% pass (565 tests)2013: 73.5% pass (476 tests)2014: 75.8% pass (396 tests)2015: 74.5% pass (321 tests)2016: 73.3% pass (262 tests)2017: 77.1% pass (223 tests)2018: 76.4% pass (161 tests)2019: 83.1% pass (130 tests)2020: 83.1% pass (124 tests)2021: 78.0% pass (141 tests)2022: 72.1% pass (111 tests)2023: 78.2% pass (101 tests)2024: 80.8% pass (73 tests)2025: 65.6% pass (64 tests)20052025

Pass rate by mileage

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

A low-mileage SGX passes first time 78.7% of the time; by 30k that's 84.3%.

68%78%87%0k: 78.7% pass (5,631 tests)10k: 70.9% pass (2,671 tests)20k: 74.2% pass (399 tests)30k: 84.3% pass (51 tests)0k20k30k

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 SGX

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
960 32.5 1.5×
steering and suspension
762 25.8 2.1×
brakes
542 18.3 1.1×
tyres and wheels
287 9.7 1.4×
fuel and exhaust
139 4.7 1.9×
lamps and reflectors
97 3.3 0.3×
suspension
49 1.7 0.5×
steering
45 1.5 0.9×
body and structure
44 1.5 1.0×
reg plates and vin
33 1.1 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 SGX 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 SGX.

Pass rate by registration year

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

Best year to buy used: 2003 (78.7% pass). Weakest: 1997 (73.4%).

72%76%80%1997: 73.4% pass (1,056 tests)1998: 75.9% pass (1,783 tests)1999: 77.5% pass (1,539 tests)2000: 74.1% pass (1,183 tests)2001: 77.2% pass (1,371 tests)2002: 75.7% pass (955 tests)2003: 78.7% pass (902 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 SGX FAQ

answers computed from the data above · terms in the glossary

Is the HONDA SGX reliable?

The HONDA SGX is more reliable than average for its class: 76.1% of its 8,795 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4171 of 5426 models.

What does a SGX fail its MOT on most?

lighting and signalling — 32% of all defects recorded against failed SGX tests.

What is the best year of SGX to buy used?

By first-time pass rate, 2003-registered examples do best (78.7%) and 1997 worst (73.4%). Condition and history still trump the year.

How many miles will a SGX last?

The median SGX shows 7,801 miles at test, and examples around 30k miles still pass 84.3% of the time — mileage alone rarely kills one.