KTM 790 Adventure 20 vs Triumph Adventurer

The KTM 790 Adventure 20 passes its MOT first time more often than the Triumph Adventurer: 94.2% vs 85.1%, a 9.1-point lead.

MOT reliability, side by side

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

Metric	KTM 790 Adventure 20	Triumph Adventurer
First-time pass rate	94.2%	85.1%
Outright fail rate	3.1%	7.8%
Vs comparable bikes (age & mileage adjusted)	+5.5 pts	+0.1 pts
Engine size	799cc	885cc
Rank among all models	#143 of 5428	#2469 of 5428
Median miles at test	6,694	13,476
MOT tests analysed	325	6,067
Most common failure	brakes	lighting and signalling

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 test year

first-time MOT pass rate in each calendar year both bikes were tested

Test year	KTM 790 Adventure 20	Triumph Adventurer
2023	93.1%	87.3%
2024	95.5%	85.4%
2025	93.3%	88.2%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test

Mileage	KTM 790 Adventure 20	Triumph Adventurer
0k-10k miles	95.2%	88.4%
10k-20k miles	89.9%	83.6%

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

KTM 790 ADVENTURE 20 94.2% pass · 325 tests TRIUMPH ADVENTURER 85.1% pass · 6,067 tests

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