Pass rate over time
The XS 125 K's first-time pass rate has fallen 6.8 points since 2011, 64.3% to 57.5%.
Pass rate by mileage
A low-mileage XS 125 K passes first time 67.2% of the time; by 30k that's 50.0%.
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 XS 125 K
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lighting and signalling |
|
360 | 27.7 | 3.2× |
| steering and suspension |
|
259 | 19.9 | 3.4× |
| brakes |
|
214 | 16.4 | 2.1× |
| drive system |
|
172 | 13.2 | 9.9× |
| body and structure |
|
69 | 5.3 | 6.1× |
| lamps and reflectors |
|
67 | 5.1 | 1.4× |
| structure and attachments |
|
62 | 4.8 | 3.3× |
| tyres and wheels |
|
41 | 3.2 | 1.1× |
| fuel and exhaust |
|
32 | 2.5 | 2.1× |
| suspension |
|
25 | 1.9 | 1.8× |
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
On first-time pass rate the XS 125 K beats 0 of its 4 closest rivals (PIAGGIO VESPA, HONDA PCX 125, HONDA Vision 110).
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 XS 125 K.
Pass rate by registration year
Best year to buy used: 2011 (66.9% pass). Weakest: 2009 (59.5%).
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.
SYM XS 125 K FAQ
Is the SYM XS 125 K reliable?
The SYM XS 125 K is less reliable than average for its class: 62.7% of its 1,728 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5121 of 5426 models.
What does a XS 125 K fail its MOT on most?
lighting and signalling — 28% of all defects recorded against failed XS 125 K tests.
What is the best year of XS 125 K to buy used?
By first-time pass rate, 2011-registered examples do best (66.9%) and 2009 worst (59.5%). Condition and history still trump the year.
How many miles will a XS 125 K last?
The median XS 125 K shows 9,636 miles at test, and examples around 30k miles still pass 50.0% of the time — mileage alone rarely kills one.