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

Data as of: DVSA MOT results to 2025

BMW F 850 GS Adventure Te vs Triumph Tiger

The BMW F 850 GS Adventure Te passes its MOT first time more often than the Triumph Tiger: 96.9% vs 89.6%, a 7.3-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric BMW F 850 GS Adventure Te Triumph Tiger
First-time pass rate 96.9% 89.6%
Outright fail rate 1.5% 6.1%
Vs comparable bikes (age & mileage adjusted) +8.9 pts +4.5 pts
Engine size 853cc 955cc
Rank among all models #12 of 5428 #1077 of 5428
Median miles at test 8,577 16,462
MOT tests analysed 262 161,363
Most common failure suspension 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 BMW F 850 GS Adventure Te Triumph Tiger
0k-10k miles 99.3% 93.4%
10k-20k miles 94.6% 90.9%

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

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