Suzuki Gsxr 600 L7 vs Yamaha YZF-R6

The Suzuki Gsxr 600 L7 passes its MOT first time more often than the Yamaha YZF-R6: 92.4% vs 79.0%, a 13.4-point lead.

MOT reliability, side by side

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

Metric	Suzuki Gsxr 600 L7	Yamaha YZF-R6
First-time pass rate	92.4%	79.0%
Outright fail rate	4.1%	12.4%
Vs comparable bikes (age & mileage adjusted)	+3.0 pts	-5.5 pts
Engine size	599cc	599cc
Rank among all models	#405 of 5428	#3771 of 5428
Median miles at test	7,251	17,023
MOT tests analysed	315	155,350
Most common failure	lamps and reflectors	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	Suzuki Gsxr 600 L7	Yamaha YZF-R6
2020	92.0%	82.1%
2021	89.7%	80.7%
2022	88.2%	81.9%
2023	93.9%	82.7%
2024	94.6%	82.7%
2025	97.7%	83.3%

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	Suzuki Gsxr 600 L7	Yamaha YZF-R6
0k-10k miles	90.4%	84.3%
10k-20k miles	93.3%	79.9%

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

SUZUKI GSXR 600 L7 92.4% pass · 315 tests YAMAHA YZF-R6 79.0% pass · 155k tests

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