Honda Bros 650 vs Suzuki GSF600

The Honda Bros 650 passes its MOT first time more often than the Suzuki GSF600: 78.6% vs 77.3%, a 1.3-point lead.

MOT reliability, side by side

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

Metric	Honda Bros 650	Suzuki GSF600
First-time pass rate	78.6%	77.3%
Outright fail rate	9.9%	14.2%
Vs comparable bikes (age & mileage adjusted)	-2.5 pts	-6.1 pts
Engine size	649cc	599cc
Rank among all models	#3832 of 5428	#4013 of 5428
Median miles at test	43,861	21,080
MOT tests analysed	243	143,023
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.

Pass rate by mileage

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

Mileage	Honda Bros 650	Suzuki GSF600
30k-40k miles	80.0%	71.3%
50k-60k miles	76.7%	68.3%

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

HONDA BROS 650 78.6% pass · 243 tests SUZUKI GSF600 77.3% pass · 143k tests

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