BMW K 100 RT vs Suzuki GSF1200

The Suzuki GSF1200 passes its MOT first time more often than the BMW K 100 RT: 82.4% vs 81.8%, a 0.6-point lead.

MOT reliability, side by side

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

Metric	BMW K 100 RT	Suzuki GSF1200
First-time pass rate	81.8%	82.4%
Outright fail rate	12.7%	8.9%
Vs comparable bikes (age & mileage adjusted)	+2.0 pts	-1.2 pts
Engine size	1,000cc	1,157cc
Rank among all models	#3218 of 5428	#3108 of 5428
Median miles at test	58,964	20,274
MOT tests analysed	490	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.

Pass rate by test year

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

Test year	BMW K 100 RT	Suzuki GSF1200
2006	85.9%	86.2%
2007	73.5%	84.3%
2008	85.2%	82.0%
2009	87.5%	80.3%

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 K 100 RT	Suzuki GSF1200
20k-30k miles	84.6%	81.1%
30k-40k miles	87.2%	78.5%
40k-50k miles	85.7%	78.4%
50k-60k miles	85.2%	78.8%

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

BMW K 100 RT 81.8% pass · 490 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.