BMW R90/6 vs Suzuki GSF1200

The BMW R90/6 passes its MOT first time more often than the Suzuki GSF1200: 90.1% vs 82.4%, a 7.7-point lead.

MOT reliability, side by side

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

Metric	BMW R90/6	Suzuki GSF1200
First-time pass rate	90.1%	82.4%
Outright fail rate	5.0%	8.9%
Vs comparable bikes (age & mileage adjusted)	+7.1 pts	-1.2 pts
Engine size	898cc	1,157cc
Rank among all models	#921 of 5428	#3108 of 5428
Median miles at test	48,853	20,274
MOT tests analysed	556	97,637
Most common failure	brakes	lighting and signalling

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	BMW R90/6	Suzuki GSF1200
Lights & signalling	2.0%	4.5%
Brakes	2.2%	2.8%
Steering & suspension	1.6%	2.2%
Tyres & wheels	0.4%	2.0%
Fuel & exhaust	0.7%	0.8%
Structure & body	0.2%	0.8%
Drive system	0%	0.6%

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	BMW R90/6	Suzuki GSF1200
2010	84.4%	81.3%
2011	86.5%	80.2%
2012	96.7%	80.7%
2013	84.4%	80.2%
2014	86.7%	81.0%
2015	95.1%	81.9%
2016	92.1%	82.2%
2017	95.2%	82.9%

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	BMW R90/6	Suzuki GSF1200
0k-10k miles	94.5%	87.7%
10k-20k miles	86.9%	83.8%
20k-30k miles	87.7%	81.1%
30k-40k miles	89.6%	78.5%
40k-50k miles	90.3%	78.4%
50k-60k miles	90.8%	78.8%

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

BMW R90/6 vs Suzuki GSF1200 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the BMW R90/6 or the Suzuki GSF1200?

The BMW R90/6 passes its MOT first time more often than the Suzuki GSF1200: 90.1% vs 82.4%, a 7.7-point lead. Adjusted for age, mileage and test class, the BMW R90/6 still comes out ahead: +7.1 points vs comparable bikes for the BMW R90/6, -1.2 for the Suzuki GSF1200. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the BMW R90/6 fail its MOT on most?

Brakes: 2.2% of BMW R90/6 MOT tests failed on it, then lights & signalling (2.0%).

What does the Suzuki GSF1200 fail its MOT on most?

Lights & signalling: 4.5% of Suzuki GSF1200 MOT tests failed on it, then brakes (2.8%).

Which holds up better at high mileage, the BMW R90/6 or the Suzuki GSF1200?

At 50k-60k miles the BMW R90/6 passes first time more often: 90.8% for the BMW R90/6 vs 78.8% for the Suzuki GSF1200.

BMW R90/6 90.1% pass · 556 tests SUZUKI GSF1200 82.4% pass · 97.6k tests

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