Honda GL 1800 D vs Suzuki GSX1300R

The Honda GL 1800 D passes its MOT first time more often than the Suzuki GSX1300R: 96.3% vs 86.3%, a 10.0-point lead.

MOT reliability, side by side

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

Metric	Honda GL 1800 D	Suzuki GSX1300R
First-time pass rate	96.3%	86.3%
Outright fail rate	2.1%	8.7%
Vs comparable bikes (age & mileage adjusted)	+12.6 pts	+2.2 pts
Engine size	1,832cc	1,299cc
Median miles at test	23,829	18,876
MOT tests analysed	190	48,351
Most common failure	brakes	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 GL 1800 D	Suzuki GSX1300R
10k-20k miles	97.9%	87.3%
20k-30k miles	95.5%	84.5%

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

HONDA GL 1800 D 96.3% pass · 190 tests SUZUKI GSX1300R 86.3% pass · 48.4k tests

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