BUELL XB 12 SCG LIGHTNING

1203cc Petrol Class 2

#1693 of 5426 overall #4 of 23 BUELLs #1023 of 2787 other bikes

87.7%

first-time pass rate

4.5%

failed outright

7,128

median miles at test

555

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2011–2021

The XB 12 SCG LIGHTNING's first-time pass rate has risen 17.2 points since 2011, 76.3% to 93.5%.

Pass rate by mileage

how the XB 12 SCG LIGHTNING's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage XB 12 SCG LIGHTNING passes first time 91.2% of the time; by 20k that's 76.7%.

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 XB 12 SCG LIGHTNING

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	14	32.6	0.4×
lamps and reflectors	7	16.3	0.3×
reg plates and vin	5	11.6	1.6×
tyres and wheels	4	9.3	0.3×
brakes	4	9.3	0.2×
steering and suspension	4	9.3	0.2×
tyres	2	4.7	0.5×
body and structure	1	2.3	0.4×
audible warning (Horn)	1	2.3	1.0×
steering	1	2.3	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

same type, similar capacity, high test volume

On first-time pass rate the XB 12 SCG LIGHTNING beats 2 of its 4 closest rivals (BMW R1200, BMW R1150, TRIUMPH SPRINT).

BMW R1200 92.9% pass · 299k tests BMW R1150 88.5% pass · 171k tests TRIUMPH SPRINT 85.6% pass · 133k tests SUZUKI GSF1200 82.4% pass · 97.6k tests

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 XB 12 SCG LIGHTNING.

Pass rate by registration year

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

Best year to buy used: 2008 (92.6% pass). Weakest: 2007 (83.8%).

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 XB 12 SCG LIGHTNING FAQ

answers computed from the data above · terms in the glossary

Is the BUELL XB 12 SCG LIGHTNING reliable?

The BUELL XB 12 SCG LIGHTNING is more reliable than average for its class: 87.7% of its 555 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1693 of 5426 models.

What does a XB 12 SCG LIGHTNING fail its MOT on most?

lighting and signalling — 33% of all defects recorded against failed XB 12 SCG LIGHTNING tests.

What is the best year of XB 12 SCG LIGHTNING to buy used?

By first-time pass rate, 2008-registered examples do best (92.6%) and 2007 worst (83.8%). Condition and history still trump the year.

How many miles will a XB 12 SCG LIGHTNING last?

The median XB 12 SCG LIGHTNING shows 7,128 miles at test, and examples around 20k miles still pass 76.7% of the time — mileage alone rarely kills one.