BIKERELIABILITY Reg check
League table/ Moto Guzzi V35/vs Kawasaki ZXR400
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Moto Guzzi V35 vs Kawasaki ZXR400

The Moto Guzzi V35 passes its MOT first time more often than the Kawasaki ZXR400: 80.2% vs 73.1%, a 7.1-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Moto Guzzi V35 Kawasaki ZXR400
First-time pass rate 80.2% 73.1%
Outright fail rate 9.1% 18.9%
Vs comparable bikes (age & mileage adjusted) -2.5 pts -9.9 pts
Engine size 346cc 398cc
Rank among all models #3532 of 5428 #4490 of 5428
Median miles at test 35,358 23,651
MOT tests analysed 551 14,200
Most common failure lighting and signalling lighting and signalling

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 Moto Guzzi V35 Kawasaki ZXR400
Lights & signalling 5.4% 9.1%
Steering & suspension 2.9% 7.9%
Brakes 2.4% 7.9%
Tyres & wheels 0.9% 4.0%
Fuel & exhaust 0.4% 2.4%
Structure & body 0.4% 2.2%
Drive system 0% 1.9%

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 Moto Guzzi V35 Kawasaki ZXR400
2008 81.8% 72.6%
2009 77.1% 70.1%
2010 71.8% 68.5%
2011 73.2% 71.2%
2012 75.0% 69.5%
2013 74.5% 68.6%
2014 74.3% 70.6%
2017 100.0% 74.7%

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 Moto Guzzi V35 Kawasaki ZXR400
0k-10k miles 86.4% 87.1%
10k-20k miles 81.7% 77.4%
20k-30k miles 84.4% 69.9%
30k-40k miles 81.8% 67.8%
40k-50k miles 74.3% 64.7%
50k-60k miles 82.1% 64.9%

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

Moto Guzzi V35 vs Kawasaki ZXR400 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Moto Guzzi V35 or the Kawasaki ZXR400?

The Moto Guzzi V35 passes its MOT first time more often than the Kawasaki ZXR400: 80.2% vs 73.1%, a 7.1-point lead. Adjusted for age, mileage and test class, the Moto Guzzi V35 still comes out ahead: -2.5 points vs comparable bikes for the Moto Guzzi V35, -9.9 for the Kawasaki ZXR400. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Moto Guzzi V35 fail its MOT on most?

Lights & signalling: 5.4% of Moto Guzzi V35 MOT tests failed on it, then steering & suspension (2.9%).

What does the Kawasaki ZXR400 fail its MOT on most?

Lights & signalling: 9.1% of Kawasaki ZXR400 MOT tests failed on it, then steering & suspension (7.9%).

Which holds up better at high mileage, the Moto Guzzi V35 or the Kawasaki ZXR400?

At 50k-60k miles the Moto Guzzi V35 passes first time more often: 82.1% for the Moto Guzzi V35 vs 64.9% for the Kawasaki ZXR400.

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