Derbi Gp 1 MOT Pass Rate
Overall pass rate across all manufacture years, based on 80 real MOT test results. Failure rate: 43.8%.
Data from official DVSA MOT testing records
Derbi Gp 1 MOT Reliability Overview
The Derbi Gp 1 is a rare vehicle in the UK, with 80 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 56.3% and a failure rate of 43.8%, which is slightly below the UK average of approximately 37%.
Based on this data, the Derbi Gp 1 earns a "Below Average" reliability rating. The average Derbi Gp 1 presents for MOT with approximately 4,660 miles on the clock.
The most common MOT failure for the Derbi Gp 1 is Motorcycle lighting and signalling, affecting 56.3% of all tests. 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. The second most common issue is Motorcycle steering and suspension at 28.7%. Motorcycle brakes rounds out the top three at 22.5%. 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 Lighting And Signalling | 66.3% | 53 |
| 2 | Motorcycle Steering And Suspension | 35.0% | 28 |
| 3 | Motorcycle Brakes | 23.8% | 19 |
| 4 | Motorcycle Tyres And Wheels | 16.3% | 13 |
| 5 | Motorcycle Fuel And Exhaust | 8.8% | 7 |
| 6 | Motorcycle Body And Structure | 7.5% | 6 |
| 7 | Motorcycle Reg Plates And Vin | 2.5% | 2 |
| 8 | Motorcycle Lamps And Reflectors | 2.5% | 2 |
| 9 | Motorcycle Driving Controls | 1.3% | 1 |
| 10 | Motorcycle Drive System | 1.3% | 1 |
| 11 | Motorcycle Suspension | 1.3% | 1 |
| 12 | Identification Of The Vehicle | 1.3% | 1 |
| 13 | Motorcycle Tyres | 1.3% | 1 |
| 14 | Motorcycle Steering | 1.3% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Derbi Gp 1 has 4,660 miles when tested for MOT.
About Derbi Gp 1 MOT Data
The Derbi Gp 1 is a rare vehicle in the UK, with 80 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 56.3% and a failure rate of 43.8%, which is slightly below the UK average of approximately 37%.
For Derbi Gp 1 owners, these results suggest average reliability — some preparation before MOT can improve pass chances. Focus your pre-MOT checks on motorcycle lighting and signalling and motorcycle steering and suspension 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 Gp 1 is likely to perform.
Motorcycle lighting and signalling — 56.3% of failures
Motorcycle lighting and signalling issues account for 56.3% of MOT failures on the Derbi Gp 1. 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 steering and suspension — 28.7% of failures
Motorcycle steering and suspension issues account for 28.7% of MOT failures on the Derbi Gp 1. 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.
Motorcycle brakes — 22.5% of failures
Motorcycle brakes issues account for 22.5% of MOT failures on the Derbi Gp 1. 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).
Frequently Asked Questions
What is the MOT pass rate for the Derbi Gp 1?
Based on 80 (based on limited data) MOT tests in our database, the Derbi Gp 1 has an overall pass rate of 56.3% (43.8% fail rate).
What are the most common MOT failures on a Derbi Gp 1?
The top 3 reasons a Derbi Gp 1 fails its MOT are: 1. Motorcycle lighting and signalling (56.3%), 2. Motorcycle steering and suspension (28.7%), 3. Motorcycle brakes (22.5%). Check these areas before booking your MOT.
Is the Derbi Gp 1 reliable?
With a 43.8% MOT failure rate, the Gp 1 is about average compared to the UK average of ~40%.
What should I check before an MOT on my Derbi Gp 1?
Based on failure data, focus on: Motorcycle lighting and signalling (56.3%); Motorcycle steering and suspension (28.7%); Motorcycle brakes (22.5%). 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.