BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ SUZUKI/GSF 1200 SK4
Model report · 2005–2025

SUZUKI GSF 1200 SK4

1157cc Petrol Class 2
83.2%
first-time pass rate
10.9%
failed outright
15,946
median miles at test
411
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2008–2009

The GSF 1200 SK4's first-time pass rate has risen 2.3 points since 2008, 84.4% to 86.7%.

83%86%88%2008: 84.4% pass (32 tests)2009: 86.7% pass (30 tests)20082009

Pass rate by mileage

how the GSF 1200 SK4's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GSF 1200 SK4 passes first time 87.5% of the time; by 40k that's 81.6%.

73%81%90%0k: 87.5% pass (128 tests)10k: 81.6% pass (103 tests)20k: 82.1% pass (67 tests)30k: 75.0% pass (40 tests)40k: 81.6% pass (38 tests)0k20k40k

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 GSF 1200 SK4

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
17 22.4
brakes
16 21.1
tyres and wheels
11 14.5
lamps and reflectors
10 13.2
tyres
8 10.5
steering and suspension
4 5.3
reg plates and vin
3 3.9
suspension
3 3.9
drive system
2 2.6
fuel and exhaust
2 2.6

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the GSF 1200 SK4 beats 1 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 GSF 1200 SK4.

Pass rate by registration year

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

Best year to buy used: 2005 (85.3% pass). Weakest: 2004 (81.3%).

81%83%86%2004: 81.3% pass (219 tests)2005: 85.3% pass (190 tests)20042005

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.