Buell S1 vs Triumph Sprint

The Buell S1 passes its MOT first time more often than the Triumph Sprint — 86.1% vs 85.6%, a 0.5-point lead.

MOT reliability, side by side

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

Metric	Buell S1	Triumph Sprint
First-time pass rate	86.1%	85.6%
Outright fail rate	6.4%	8.8%
Median miles at test	13,063	20,615
MOT tests analysed	3,738	132,827
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.

BUELL S1 86.1% pass · 3,738 tests TRIUMPH SPRINT 85.6% pass · 133k tests

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