BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

SUZUKI GS850G

843cc Petrol Class 2
78.2%
first-time pass rate
12.2%
failed outright
37,936
median miles at test
403
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2010

The GS850G's first-time pass rate has fallen 14.5 points since 2006, 84.2% to 69.7%.

65%77%88%2006: 84.2% pass (38 tests)2007: 76.7% pass (30 tests)2008: 69.2% pass (39 tests)2010: 69.7% pass (33 tests)20062010

Pass rate by mileage

how the GS850G's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GS850G passes first time 73.3% of the time; by 50k that's 67.4%.

63%78%92%0k: 73.3% pass (30 tests)10k: 78.8% pass (52 tests)20k: 82.4% pass (74 tests)30k: 88.3% pass (60 tests)40k: 74.6% pass (118 tests)50k: 67.4% pass (46 tests)0k30k50k

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 GS850G

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
brakes
47 37.3
lighting and signalling
30 23.8
steering and suspension
20 15.9
tyres and wheels
11 8.7
reg plates and vin
7 5.6
body and structure
4 3.2
fuel and exhaust
3 2.4
lamps and reflectors
2 1.6
steering
1 0.8
structure and attachments
1 0.8

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 GS850G beats 2 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

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 GS850G.

Pass rate by registration year

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

Best year to buy used: 1979 (82.8% pass). Weakest: 1980 (74.7%).

73%79%84%1979: 82.8% pass (87 tests)1980: 74.7% pass (95 tests)1981: 77.9% pass (68 tests)1987: 78.2% pass (55 tests)197919811987

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.