Triumph Rocket 111 Roadster vs Triumph Rocket 111

The Triumph Rocket 111 Roadster passes its MOT first time more often than the Triumph Rocket 111 — 90.7% vs 88.4%, a 2.3-point lead.

MOT reliability, side by side

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

Metric	Triumph Rocket 111 Roadster	Triumph Rocket 111
First-time pass rate	90.7%	88.4%
Outright fail rate	4.8%	5.9%
Median miles at test	12,447	13,488
MOT tests analysed	2,642	6,812
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.

TRIUMPH ROCKET 111 ROADSTER 90.7% pass · 2,642 tests TRIUMPH ROCKET 111 88.4% pass · 6,812 tests

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