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

Data as of: DVSA MOT results to 2025

Moto Guzzi California Iii vs BMW R1200

The BMW R1200 passes its MOT first time more often than the Moto Guzzi California Iii: 92.9% vs 83.2%, a 9.7-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Moto Guzzi California Iii BMW R1200
First-time pass rate 83.2% 92.9%
Outright fail rate 9.7% 3.7%
Vs comparable bikes (age & mileage adjusted) +1.5 pts +8.6 pts
Engine size 949cc 1,170cc
Rank among all models #2911 of 5428 #315 of 5428
Median miles at test 32,953 20,069
MOT tests analysed 1,460 299,381
Most common failure lighting and signalling 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 Moto Guzzi California Iii BMW R1200
Lights & signalling 4.3% 0.9%
Brakes 3.4% 1.5%
Steering & suspension 3.1% 0.7%
Tyres & wheels 2.1% 1.0%
Structure & body 0.7% 0.1%
Fuel & exhaust 0.3% 0.0%

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 California Iii BMW R1200
2018 84.0% 93.0%
2019 86.4% 93.6%
2020 78.6% 94.0%
2021 87.9% 93.9%
2022 90.9% 93.8%
2023 86.3% 94.1%
2024 87.9% 94.0%
2025 88.9% 94.2%

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 California Iii BMW R1200
0k-10k miles 87.9% 94.8%
10k-20k miles 86.5% 93.7%
20k-30k miles 82.4% 92.8%
30k-40k miles 83.8% 91.9%
40k-50k miles 80.3% 90.8%
50k-60k miles 81.3% 89.5%

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

Moto Guzzi California Iii vs BMW R1200 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Moto Guzzi California Iii or the BMW R1200?

The BMW R1200 passes its MOT first time more often than the Moto Guzzi California Iii: 92.9% vs 83.2%, a 9.7-point lead. Adjusted for age, mileage and test class, the BMW R1200 still comes out ahead: +1.5 points vs comparable bikes for the Moto Guzzi California Iii, +8.6 for the BMW R1200. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Moto Guzzi California Iii fail its MOT on most?

Lights & signalling: 4.3% of Moto Guzzi California Iii MOT tests failed on it, then brakes (3.4%).

What does the BMW R1200 fail its MOT on most?

Brakes: 1.5% of BMW R1200 MOT tests failed on it, then tyres & wheels (1.0%).

Which holds up better at high mileage, the Moto Guzzi California Iii or the BMW R1200?

At 50k-60k miles the BMW R1200 passes first time more often: 81.3% for the Moto Guzzi California Iii vs 89.5% for the BMW R1200.

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