Suzuki Gz125 MOT Pass Rate
Overall pass rate across all manufacture years, based on 22,830 real MOT test results. Failure rate: 34.9%.
Data from official DVSA MOT testing records
Suzuki Gz125 MOT Reliability Overview
The Suzuki Gz125 is a relatively common sight on UK roads, with 22,830 MOT test results recorded in our database spanning 15 manufacture years. It has an overall MOT pass rate of 65.1% and a failure rate of 34.9%, which is slightly above the UK average of approximately 37%.
Based on this data, the Suzuki Gz125 earns a "Good" reliability rating. The average Suzuki Gz125 presents for MOT with approximately 14,017 miles on the clock. Manufacture year matters: 2012 models achieve the highest pass rate at 88.9%, while 2000 models have the lowest at 61.2%. This 27.7 percentage point difference suggests notable variation in build quality or component durability across production years.
The most common MOT failure for the Suzuki Gz125 is Motorcycle brakes, affecting 23.6% of all tests. 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. The second most common issue is Motorcycle lighting and signalling at 19.0%. Motorcycle drive system rounds out the top three at 14.6%. 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
Best Year to Buy
📈 How Each Vintage Ages
Tracking how each manufacture year's MOT pass rate changes as the car ages. Showing 11 vintages — click year chips to highlight.
Multi-line chart showing how different Suzuki Gz125 vintages degrade over time, from age 3 to 20 years.
Only vintages with 100+ tests in at least 3 different test years are shown. Fleet average is the UK-wide pass rate for all cars at each age.
📉 How Age Affects Reliability
MOT failure rate by vehicle age for the Suzuki Gz125. The dashed red line marks when the manufacturer warranty typically expires (3 years).
Line chart showing MOT failure rate by vehicle age from 3 to 20 years, with warranty expiry marked at 3 years.
💡 What does the warranty cliff mean?
The Suzuki Gz125 ages relatively gracefully. The failure rate increase of 4% after warranty is below average, suggesting good long-term reliability. Peak failure occurs at age 20 (39.4% fail rate).
Note: pass rates may improve for very old vehicles due to survivorship bias — only well-maintained cars remain on the road.
Pass Rate by Manufacture Year
* 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 Brakes | 26.9% | 6,144 |
| 2 | Motorcycle Lighting And Signalling | 21.6% | 4,932 |
| 3 | Motorcycle Drive System | 17.4% | 3,974 |
| 4 | Motorcycle Steering And Suspension | 16.3% | 3,723 |
| 5 | Motorcycle Tyres And Wheels | 9.4% | 2,137 |
| 6 | Motorcycle Lamps And Reflectors | 7.6% | 1,735 |
| 7 | Motorcycle Structure And Attachments | 6.3% | 1,441 |
| 8 | Motorcycle Suspension | 3.7% | 845 |
| 9 | Motorcycle Fuel And Exhaust | 2.4% | 549 |
| 10 | Motorcycle Tyres | 2.0% | 446 |
| 11 | Motorcycle Body And Structure | 1.9% | 431 |
| 12 | Motorcycle Steering | 1.7% | 393 |
| 13 | Motorcycle Driving Controls | 1.2% | 282 |
| 14 | Motorcycle Reg Plates And Vin | 1.0% | 235 |
| 15 | Motorcycle Wheels | 0.7% | 158 |
Failures per 10,000 Miles
avg. 14,017 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 brakes | 19.20 | 26.9% | 6,144 |
| Motorcycle lighting and signalling | 15.41 | 21.6% | 4,932 |
| Motorcycle drive system | 12.42 | 17.4% | 3,974 |
| Motorcycle steering and suspension | 11.63 | 16.3% | 3,723 |
| Motorcycle tyres and wheels | 6.68 | 9.4% | 2,137 |
| Motorcycle lamps and reflectors | 5.42 | 7.6% | 1,735 |
| Motorcycle structure and attachments | 4.50 | 6.3% | 1,441 |
| Motorcycle suspension | 2.64 | 3.7% | 845 |
| Motorcycle fuel and exhaust | 1.72 | 2.4% | 549 |
| Motorcycle tyres | 1.39 | 2.0% | 446 |
| Motorcycle body and structure | 1.35 | 1.9% | 431 |
| Motorcycle steering | 1.23 | 1.7% | 393 |
| Motorcycle driving controls | 0.88 | 1.2% | 282 |
| Motorcycle reg plates and vin | 0.73 | 1.0% | 235 |
| Motorcycle wheels | 0.49 | 0.7% | 158 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Suzuki Gz125 has 14,017 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 Suzuki Gz125 has a mileage-adjusted failure rate of 24.90% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Suzuki Gz125 MOT Data
The Suzuki Gz125 is a relatively common sight on UK roads, with 22,830 MOT test results recorded in our database spanning 15 manufacture years. It has an overall MOT pass rate of 65.1% and a failure rate of 34.9%, which is slightly above the UK average of approximately 37%.
For Suzuki Gz125 owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle brakes and motorcycle lighting and signalling 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 Gz125 is likely to perform.
Motorcycle brakes — 23.6% of failures
Motorcycle brakes issues account for 23.6% of MOT failures on the Suzuki Gz125. 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 lighting and signalling — 19.0% of failures
Motorcycle lighting and signalling issues account for 19.0% of MOT failures on the Suzuki Gz125. Motorcycle lighting and signalling issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.
Motorcycle drive system — 14.6% of failures
Motorcycle drive system issues account for 14.6% of MOT failures on the Suzuki Gz125. Motorcycle drive system issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.
Frequently Asked Questions
What is the MOT pass rate for the Suzuki Gz125?
Based on 22,830 MOT tests in our database, the Suzuki Gz125 has an overall pass rate of 65.1% (34.9% fail rate).
What are the most common MOT failures on a Suzuki Gz125?
The top 3 reasons a Suzuki Gz125 fails its MOT are: 1. Motorcycle brakes (23.6%), 2. Motorcycle lighting and signalling (19.0%), 3. Motorcycle drive system (14.6%). Check these areas before booking your MOT.
Is the Suzuki Gz125 reliable?
With a 34.9% MOT failure rate, the Gz125 is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Suzuki Gz125?
Based on failure data, focus on: Motorcycle brakes (23.6%); Motorcycle lighting and signalling (19.0%); Motorcycle drive system (14.6%). 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.