Aprilia SX MOT pass rate and common failures

Aprilia SX motorcycles pass the MOT 62.66% of the time, measured across 233 tests in the DVSA record. A further 9.87% passed only after a defect was put right at the test station.

Worse than average: 24.2 points below the 86.87% figure for all motorcycles tested.

Pass rate 62.66% 146 of 233

Fixed at the station 9.87% passed after an on-the-spot repair

Average mileage at test 10,814 miles

Average age at test 7 years old

Engine 85cc MOT class 1 and 2

For sale now 18 Aprilia SX adverts

What to check before the MOT

Built from this model's own failure record, not general advice.

Start with not working - it accounts for 39.1% of failed tests on this model.
Then check has a serious fluid leak and missing, the next two most common reasons.
The most common advisory is noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.2% of all tests) - not a failure, but money you will spend sooner or later.
Average recorded mileage at test is 10,814 miles, which is the number to compare any advert against.

Pass rate by age

A single pass rate hides the most useful thing in this data: how the same model behaves at three years old and at fifteen.

Age at test	Pass rate		Tests
3-5 years	63.04%		92
6-10 years	61.9%		126

Why the Aprilia SX fails

Share of failed tests on this model where the item was recorded. One test can fail on several items, so the column does not add up to 100%.

#	Item	Of failures	Tests
1	Not working	39.1%	25
2	Has a serious fluid leak	21.9%	14
3	Missing	20.3%	13
4	Excessively loose	18.8%	12
5	Has excessive play	18.8%	12
6	Does not illuminate simultaneously with the position lamp(s)	14.1%	9
7	Inoperative in the case of a single lamp or all lamps	14.1%	9
8	Too high	14.1%	9
9	Less than 1.0 mm thick	10.9%	7
10	Not working on dipped beam	9.4%	6

Most common advisories

Not a failure and not a legal requirement to fix - but an advisory that repeats year after year is money the next owner spends.

#	Item	Of all tests	Tests
1	Noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition	8.2%	19
2	Has a serious fluid leak	7.7%	18
3	Less than 1.0 mm thick	7.7%	18
4	Tread depth is below minimum requirements of 1.0mm	7.7%	18
5	Worn to excess	7.3%	17
6	Excessively loose	5.6%	13
7	Chain guard missing	3.4%	8
8	Is so short that the brake cannot be readily applied	3.4%	8
9	Has an excessively worn bush	3%	7
10	Sprocket worn to excess	3%	7

Aprilia SX for sale

18 Aprilia SX adverts on MotoDealers UK right now, 202 Aprilia in total.

Used Aprilia SX Used Aprilia All Aprilia Aprilia MOT statistics

Similar bikes compared

Models of comparable capacity, so the comparison means something.

Model	Tests	Pass rate	Avg mileage
Honda NSC 108cc · 108-110cc	3,169	74.09%	35,511
Honda NSC 110-M · 110cc	2,419	77.97%	26,701
Honda C90 · 87cc	2,229	88.56%	19,928
Honda NSC 110 MPD-K · 108cc	1,178	75.38%	33,437
Peugeot TWEET · 108cc	641	79.1%	14,730
Piaggio FLY · 106cc	608	81.09%	16,050

Source: DVSA MOT testing data, 2025 · updated Aug 2026 · licence and method

Aprilia SX MOT questions

What is the MOT pass rate for the Aprilia SX?+

62.66% of Aprilia SX MOT tests end in a pass, based on 233 tests in the DVSA dataset.

What is the most common MOT failure on a Aprilia SX?+

Not working, which appears in 39.1% of failed tests on this model.

Does the Aprilia SX get harder to pass as it ages?+

At 6-10 years old the pass rate is 61.9%, against 63.04% for examples 3-5 years old.

Where does this data come from?+

From the DVSA anonymised MOT testing dataset, which records every MOT carried out in England, Scotland and Wales. It is published under the Open Government Licence and covers 2025.

Does a high pass rate mean the bike is reliable?+

Not by itself. The MOT checks safety items - brakes, tyres, lights, structure - and says nothing about engines, gearboxes or electrics. Read it as a maintenance signal, not a reliability score.