BMW K100 vs Triumph Sprint

The Triumph Sprint passes its MOT first time more often than the BMW K100: 85.6% vs 84.3%, a 1.3-point lead.

MOT reliability, side by side

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

Metric	BMW K100	Triumph Sprint
First-time pass rate	84.3%	85.6%
Outright fail rate	10.5%	8.8%
Vs comparable bikes (age & mileage adjusted)	+3.6 pts	+1.8 pts
Engine size	987cc	955cc
Rank among all models	#2659 of 5428	#2333 of 5428
Median miles at test	52,260	20,615
MOT tests analysed	20,747	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	BMW K100	Triumph Sprint
Brakes	5.1%	3.7%
Lights & signalling	3.4%	2.8%
Steering & suspension	2.7%	2.5%
Tyres & wheels	2.3%	2.2%
Structure & body	0.5%	0.6%
Fuel & exhaust	0.3%	0.2%
Drive system	0.0%	0.4%

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	BMW K100	Triumph Sprint
2015	85.8%	85.6%
2016	84.5%	85.6%
2017	84.2%	85.5%
2021	85.0%	86.7%
2022	83.3%	85.9%
2023	79.6%	86.4%
2024	82.6%	86.8%
2025	88.9%	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	BMW K100	Triumph Sprint
0k-10k miles	83.2%	90.9%
10k-20k miles	88.3%	87.5%
20k-30k miles	86.4%	85.0%
30k-40k miles	85.0%	82.1%
40k-50k miles	84.1%	80.3%
50k-60k miles	84.9%	79.3%

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

BMW K100 vs Triumph Sprint FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the BMW K100 or the Triumph Sprint?

The Triumph Sprint passes its MOT first time more often than the BMW K100: 85.6% vs 84.3%, a 1.3-point lead. Adjusted for age, mileage and test class, the BMW K100 still comes out ahead: +3.6 points vs comparable bikes for the BMW K100, +1.8 for the Triumph Sprint. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the BMW K100 fail its MOT on most?

Brakes: 5.1% of BMW K100 MOT tests failed on it, then lights & signalling (3.4%).

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 BMW K100 or the Triumph Sprint?

At 50k-60k miles the BMW K100 passes first time more often: 84.9% for the BMW K100 vs 79.3% for the Triumph Sprint.

BMW K100 84.3% pass · 20.7k tests TRIUMPH SPRINT 85.6% pass · 133k tests

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