BIKERELIABILITY Reg check
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Harley-Davidson XLH 883 Hugger vs Triumph Bonneville

The Triumph Bonneville passes its MOT first time more often than the Harley-Davidson XLH 883 Hugger: 89.0% vs 87.8%, a 1.2-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Harley-Davidson XLH 883 Hugger Triumph Bonneville
First-time pass rate 87.8% 89.0%
Outright fail rate 6.5% 5.0%
Median miles at test 11,615 7,619
MOT tests analysed 790 195,256
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.

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