BIKERELIABILITY Reg check
League table/ Kawasaki ZX-12R/vs Triumph Sprint
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Kawasaki ZX-12R vs Triumph Sprint

The Kawasaki ZX-12R passes its MOT first time more often than the Triumph Sprint: 86.2% vs 85.6%, a 0.6-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Kawasaki ZX-12R Triumph Sprint
First-time pass rate 86.2% 85.6%
Outright fail rate 7.8% 8.8%
Vs comparable bikes (age & mileage adjusted) +2.2 pts +1.8 pts
Engine size 1,199cc 955cc
Rank among all models #2148 of 5428 #2333 of 5428
Median miles at test 19,137 20,615
MOT tests analysed 33,707 132,827
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 Kawasaki ZX-12R Triumph Sprint
Brakes 2.8% 3.7%
Lights & signalling 2.8% 2.8%
Steering & suspension 2.1% 2.5%
Tyres & wheels 2.1% 2.2%
Structure & body 0.3% 0.6%
Drive system 0.3% 0.4%
Fuel & exhaust 0.3% 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 Kawasaki ZX-12R Triumph Sprint
2018 86.3% 86.2%
2019 84.6% 86.1%
2020 85.8% 86.4%
2021 86.1% 86.7%
2022 87.4% 85.9%
2023 87.1% 86.4%
2024 87.0% 86.8%
2025 87.2% 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 Kawasaki ZX-12R Triumph Sprint
0k-10k miles 90.4% 90.9%
10k-20k miles 88.2% 87.5%
20k-30k miles 84.5% 85.0%
30k-40k miles 82.4% 82.1%
40k-50k miles 80.8% 80.3%
50k-60k miles 80.9% 79.3%

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

Kawasaki ZX-12R vs Triumph Sprint FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Kawasaki ZX-12R or the Triumph Sprint?

The Kawasaki ZX-12R passes its MOT first time more often than the Triumph Sprint: 86.2% vs 85.6%, a 0.6-point lead. Adjusted for age, mileage and test class the two are level (+2.2 vs +1.8 points against comparable bikes), so the raw gap is mostly down to how old and how used each fleet is. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Kawasaki ZX-12R fail its MOT on most?

Brakes: 2.8% of Kawasaki ZX-12R MOT tests failed on it, then lights & signalling (2.8%).

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 Kawasaki ZX-12R or the Triumph Sprint?

At 50k-60k miles the Kawasaki ZX-12R passes first time more often: 80.9% for the Kawasaki ZX-12R vs 79.3% for the Triumph Sprint.

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