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

Data as of: DVSA MOT results to 2025

KTM 990 Adventure 12 vs Triumph Tiger

The Triumph Tiger passes its MOT first time more often than the KTM 990 Adventure 12: 89.6% vs 86.7%, a 2.9-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric KTM 990 Adventure 12 Triumph Tiger
First-time pass rate 86.7% 89.6%
Outright fail rate 6.0% 6.1%
Vs comparable bikes (age & mileage adjusted) +1.1 pts +4.5 pts
Engine size 1,000cc 955cc
Rank among all models #1985 of 5428 #1077 of 5428
Median miles at test 14,345 16,462
MOT tests analysed 1,056 161,363
Most common failure lamps and reflectors 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.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better
Component KTM 990 Adventure 12 Triumph Tiger
Brakes 2.0% 3.0%
Lights & signalling 2.6% 1.7%
Steering & suspension 1.0% 1.5%
Tyres & wheels 0.8% 1.1%
Structure & body 0.7% 0.5%
Drive system 0.1% 0.3%
Fuel & exhaust 0% 0.1%

A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year KTM 990 Adventure 12 Triumph Tiger
2018 84.1% 90.3%
2019 83.8% 90.2%
2020 89.7% 91.5%
2021 86.5% 91.3%
2022 88.5% 91.6%
2023 88.2% 90.9%
2024 77.9% 91.1%
2025 89.1% 91.4%

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 990 Adventure 12 Triumph Tiger
0k-10k miles 88.8% 93.4%
10k-20k miles 86.7% 90.9%
20k-30k miles 84.8% 87.8%
30k-40k miles 82.5% 85.1%

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

KTM 990 Adventure 12 vs Triumph Tiger FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the KTM 990 Adventure 12 or the Triumph Tiger?

The Triumph Tiger passes its MOT first time more often than the KTM 990 Adventure 12: 89.6% vs 86.7%, a 2.9-point lead. Adjusted for age, mileage and test class, the Triumph Tiger still comes out ahead: +1.1 points vs comparable bikes for the KTM 990 Adventure 12, +4.5 for the Triumph Tiger. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the KTM 990 Adventure 12 fail its MOT on most?

Lights & signalling: 2.6% of KTM 990 Adventure 12 MOT tests failed on it, then brakes (2.0%).

What does the Triumph Tiger fail its MOT on most?

Brakes: 3.0% of Triumph Tiger MOT tests failed on it, then lights & signalling (1.7%).

Which holds up better at high mileage, the KTM 990 Adventure 12 or the Triumph Tiger?

At 30k-40k miles the Triumph Tiger passes first time more often: 82.5% for the KTM 990 Adventure 12 vs 85.1% for the Triumph Tiger.

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