Moto Guzzi California Stone MOT Pass Rate
Overall pass rate across all manufacture years, based on 43 real MOT test results. Failure rate: 4.7%.
Data from official DVSA MOT testing records
Moto Guzzi California Stone MOT Reliability Overview
The Moto Guzzi California Stone is a rare vehicle in the UK, with 43 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 95.3% and a failure rate of 4.7%, which is well above the UK average of approximately 37%.
Based on this data, the Moto Guzzi California Stone earns a "Excellent" reliability rating. The average Moto Guzzi California Stone presents for MOT with approximately 27,447 miles on the clock.
The most common MOT failure for the Moto Guzzi California Stone is Motorcycle lamps and reflectors, affecting 9.3% of all tests. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. The second most common issue is Motorcycle brakes at 4.7%. Motorcycle steering and suspension rounds out the top three at 2.3%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Motorcycle Lamps And Reflectors | 9.3% | 4 |
| 2 | Motorcycle Brakes | 4.7% | 2 |
| 3 | Motorcycle Steering And Suspension | 2.3% | 1 |
Failures per 10,000 Miles
avg. 27,447 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Motorcycle lamps and reflectors | 3.39 | 9.3% | 4 |
| Motorcycle brakes | 1.69 | 4.7% | 2 |
| Motorcycle steering and suspension | 0.85 | 2.3% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Moto Guzzi California Stone has 27,447 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Moto Guzzi California Stone has a mileage-adjusted failure rate of 1.71% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Moto Guzzi California Stone MOT Data
The Moto Guzzi California Stone is a rare vehicle in the UK, with 43 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 95.3% and a failure rate of 4.7%, which is well above the UK average of approximately 37%.
For Moto Guzzi California Stone owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle lamps and reflectors and motorcycle brakes for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific California Stone is likely to perform.
Motorcycle lamps and reflectors — 9.3% of failures
Motorcycle lamps and reflectors issues account for 9.3% of MOT failures on the Moto Guzzi California Stone. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Motorcycle brakes — 4.7% of failures
Motorcycle brakes issues account for 4.7% of MOT failures on the Moto Guzzi California Stone. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Motorcycle steering and suspension — 2.3% of failures
Motorcycle steering and suspension issues account for 2.3% of MOT failures on the Moto Guzzi California Stone. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Frequently Asked Questions
What is the MOT pass rate for the Moto Guzzi California Stone?
Based on 43 (based on limited data) MOT tests in our database, the Moto Guzzi California Stone has an overall pass rate of 95.3% (4.7% fail rate).
What are the most common MOT failures on a Moto Guzzi California Stone?
The top 3 reasons a Moto Guzzi California Stone fails its MOT are: 1. Motorcycle lamps and reflectors (9.3%), 2. Motorcycle brakes (4.7%), 3. Motorcycle steering and suspension (2.3%). Check these areas before booking your MOT.
Is the Moto Guzzi California Stone reliable?
With a 4.7% MOT failure rate, the California Stone is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Moto Guzzi California Stone?
Based on failure data, focus on: Motorcycle lamps and reflectors (9.3%); Motorcycle brakes (4.7%); Motorcycle steering and suspension (2.3%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.