Suzuki GSF1200S vs BMW R1200

The BMW R1200 passes its MOT first time more often than the Suzuki GSF1200S: 92.9% vs 82.9%, a 10.0-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025

Metric	Suzuki GSF1200S	BMW R1200
First-time pass rate	82.9%	92.9%
Outright fail rate	9.0%	3.7%
Vs comparable bikes (age & mileage adjusted)	-0.8 pts	+8.6 pts
Engine size	1,157cc	1,170cc
Rank among all models	#2985 of 5428	#315 of 5428
Median miles at test	19,782	20,069
MOT tests analysed	41,821	299,381
Most common failure	lighting and signalling	brakes

First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.

"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better

Component	Suzuki GSF1200S	BMW R1200
Lights & signalling	4.4%	0.9%
Brakes	2.9%	1.5%
Tyres & wheels	2.1%	1.0%
Steering & suspension	2.2%	0.7%
Fuel & exhaust	0.9%	0.0%
Drive system	0.8%	0%
Structure & body	0.5%	0.1%

A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested

Test year	Suzuki GSF1200S	BMW R1200
2013	81.1%	91.1%
2014	82.5%	91.7%
2015	83.0%	92.4%
2016	82.3%	92.4%
2017	82.7%	92.8%
2018	83.3%	93.0%
2019	82.9%	93.6%
2020	83.2%	94.0%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test

Mileage	Suzuki GSF1200S	BMW R1200
0k-10k miles	89.7%	94.8%
10k-20k miles	85.1%	93.7%
20k-30k miles	80.0%	92.8%
30k-40k miles	79.3%	91.9%
40k-50k miles	77.2%	90.8%
50k-60k miles	75.4%	89.5%

Bands with fewer than 30 tests for either bike are left out.

Suzuki GSF1200S vs BMW R1200 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Suzuki GSF1200S or the BMW R1200?

The BMW R1200 passes its MOT first time more often than the Suzuki GSF1200S: 92.9% vs 82.9%, a 10.0-point lead. Adjusted for age, mileage and test class, the BMW R1200 still comes out ahead: -0.8 points vs comparable bikes for the Suzuki GSF1200S, +8.6 for the BMW R1200. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Suzuki GSF1200S fail its MOT on most?

Lights & signalling: 4.4% of Suzuki GSF1200S MOT tests failed on it, then brakes (2.9%).

What does the BMW R1200 fail its MOT on most?

Brakes: 1.5% of BMW R1200 MOT tests failed on it, then tyres & wheels (1.0%).

Which holds up better at high mileage, the Suzuki GSF1200S or the BMW R1200?

At 50k-60k miles the BMW R1200 passes first time more often: 75.4% for the Suzuki GSF1200S vs 89.5% for the BMW R1200.

SUZUKI GSF1200S 82.9% pass · 41.8k tests BMW R1200 92.9% pass · 299k tests

See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.