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

Data as of: DVSA MOT results to 2025

Kawasaki ZZ-R1100 vs BMW R1150

The BMW R1150 passes its MOT first time more often than the Kawasaki ZZ-R1100: 88.5% vs 80.8%, a 7.7-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Kawasaki ZZ-R1100 BMW R1150
First-time pass rate 80.8% 88.5%
Outright fail rate 13.1% 6.8%
Vs comparable bikes (age & mileage adjusted) -1.0 pts +6.7 pts
Engine size 1,052cc 1,130cc
Rank among all models #3418 of 5428 #1449 of 5428
Median miles at test 29,838 33,151
MOT tests analysed 39,662 170,963
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 ZZ-R1100 BMW R1150
Brakes 6.2% 2.9%
Lights & signalling 4.2% 2.4%
Steering & suspension 5.1% 1.4%
Tyres & wheels 2.9% 1.7%
Drive system 0.9% 0.0%
Fuel & exhaust 0.8% 0.1%
Structure & body 0.6% 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 ZZ-R1100 BMW R1150
2018 81.4% 88.1%
2019 82.2% 88.3%
2020 83.0% 88.0%
2021 83.2% 87.9%
2022 83.9% 88.6%
2023 86.7% 89.1%
2024 87.8% 88.1%
2025 86.7% 89.1%

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 ZZ-R1100 BMW R1150
0k-10k miles 87.3% 92.9%
10k-20k miles 84.4% 92.1%
20k-30k miles 82.0% 90.1%
30k-40k miles 78.9% 88.6%
40k-50k miles 77.7% 86.9%
50k-60k miles 76.8% 85.7%

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

Kawasaki ZZ-R1100 vs BMW R1150 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Kawasaki ZZ-R1100 or the BMW R1150?

The BMW R1150 passes its MOT first time more often than the Kawasaki ZZ-R1100: 88.5% vs 80.8%, a 7.7-point lead. Adjusted for age, mileage and test class, the BMW R1150 still comes out ahead: -1.0 points vs comparable bikes for the Kawasaki ZZ-R1100, +6.7 for the BMW R1150. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Kawasaki ZZ-R1100 fail its MOT on most?

Brakes: 6.2% of Kawasaki ZZ-R1100 MOT tests failed on it, then steering & suspension (5.1%).

What does the BMW R1150 fail its MOT on most?

Brakes: 2.9% of BMW R1150 MOT tests failed on it, then lights & signalling (2.4%).

Which holds up better at high mileage, the Kawasaki ZZ-R1100 or the BMW R1150?

At 50k-60k miles the BMW R1150 passes first time more often: 76.8% for the Kawasaki ZZ-R1100 vs 85.7% for the BMW R1150.

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