BIKERELIABILITY Reg check
League table/ KTM 10 50/vs Triumph Sprint
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

KTM 10 50 vs Triumph Sprint

The KTM 10 50 passes its MOT first time more often than the Triumph Sprint: 90.8% vs 85.6%, a 5.2-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric KTM 10 50 Triumph Sprint
First-time pass rate 90.8% 85.6%
Outright fail rate 5.1% 8.8%
Vs comparable bikes (age & mileage adjusted) +4.5 pts +1.8 pts
Engine size 1,050cc 955cc
Rank among all models #727 of 5428 #2333 of 5428
Median miles at test 12,728 20,615
MOT tests analysed 1,169 132,827
Most common failure brakes 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 10 50 Triumph Sprint
Brakes 1.6% 3.7%
Lights & signalling 1.5% 2.8%
Steering & suspension 1.7% 2.5%
Tyres & wheels 0.8% 2.2%
Structure & body 0.1% 0.6%
Drive system 0% 0.4%
Fuel & exhaust 0% 0.2%

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 10 50 Triumph Sprint
2018 91.6% 86.2%
2019 87.7% 86.1%
2020 91.3% 86.4%
2021 93.0% 86.7%
2022 87.8% 85.9%
2023 94.6% 86.4%
2024 93.4% 86.8%
2025 86.7% 86.8%

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 10 50 Triumph Sprint
0k-10k miles 92.5% 90.9%
10k-20k miles 90.0% 87.5%
20k-30k miles 88.6% 85.0%
30k-40k miles 90.4% 82.1%

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

KTM 10 50 vs Triumph Sprint FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the KTM 10 50 or the Triumph Sprint?

The KTM 10 50 passes its MOT first time more often than the Triumph Sprint: 90.8% vs 85.6%, a 5.2-point lead. Adjusted for age, mileage and test class, the KTM 10 50 still comes out ahead: +4.5 points vs comparable bikes for the KTM 10 50, +1.8 for the Triumph Sprint. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the KTM 10 50 fail its MOT on most?

Steering & suspension: 1.7% of KTM 10 50 MOT tests failed on it, then brakes (1.6%).

What does the Triumph Sprint fail its MOT on most?

Brakes: 3.7% of Triumph Sprint MOT tests failed on it, then lights & signalling (2.8%).

Which holds up better at high mileage, the KTM 10 50 or the Triumph Sprint?

At 30k-40k miles the KTM 10 50 passes first time more often: 90.4% for the KTM 10 50 vs 82.1% for the Triumph Sprint.

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