Pass rate over time
The XB12S's first-time pass rate has held steady since 2006 (91.5% → 90.6%).
Pass rate by mileage
A low-mileage XB12S passes first time 87.9% of the time; by 30k that's 78.5%.
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 XB12S
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lighting and signalling |
|
190 | 30.7 | 0.7× |
| steering and suspension |
|
76 | 12.3 | 0.4× |
| lamps and reflectors |
|
74 | 12 | 0.7× |
| brakes |
|
65 | 10.5 | 0.3× |
| tyres and wheels |
|
57 | 9.2 | 0.5× |
| reg plates and vin |
|
57 | 9.2 | 1.2× |
| body and structure |
|
33 | 5.3 | 0.9× |
| structure and attachments |
|
29 | 4.7 | 0.6× |
| fuel and exhaust |
|
20 | 3.2 | 0.5× |
| suspension |
|
17 | 2.8 | 0.4× |
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 XB12S beats 2 of its 4 closest rivals (BMW R1200, BMW R1150, TRIUMPH SPRINT).
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 XB12S.
Pass rate by registration year
Best year to buy used: 2009 (92.9% pass). Weakest: 2005 (81.7%).
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.
BUELL XB12S FAQ
Is the BUELL XB12S reliable?
The BUELL XB12S is about average for its class: 86.2% of its 5,087 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2146 of 5426 models.
What does a XB12S fail its MOT on most?
lighting and signalling — 31% of all defects recorded against failed XB12S tests.
What is the best year of XB12S to buy used?
By first-time pass rate, 2009-registered examples do best (92.9%) and 2005 worst (81.7%). Condition and history still trump the year.
How many miles will a XB12S last?
The median XB12S shows 8,538 miles at test, and examples around 30k miles still pass 78.5% of the time — mileage alone rarely kills one.