1998 Triumph Speed Triple 955i MOT Pass Rate
Pass rate for Speed Triple 955i models manufactured in 1998, based on 164 real MOT test results.
Data from official DVSA MOT testing records
1998 Triumph Speed Triple 955i MOT Analysis
The 1998 Triumph Speed Triple 955i has an MOT pass rate of 89.6% based on 164 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 20,561 miles on the odometer. With a 10.4% failure rate, the 1998 Speed Triple 955i is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1998 Triumph Speed Triple 955i is Motorcycle steering, responsible for 0.6% of failures. Steering failures include excessive play in the steering wheel, leaking power steering fluid, worn track rod ends, and damaged steering rack. These affect vehicle control and are closely related to suspension wear. Typical repair costs range from £150–600. Motorcycle suspension is the second most common issue at 0.6%. Motorcycle brakes follows at 0.6%.
Top failures specific to 1998 models only. The overall Speed Triple 955i page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Motorcycle Steering | 0.6% | 1 |
| 2 | Motorcycle Suspension | 0.6% | 1 |
| 3 | Motorcycle Brakes | 0.6% | 1 |
| 4 | Motorcycle Lamps And Reflectors | 0.6% | 1 |
Failures per 10,000 Miles
avg. 20,561 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 steering | 0.30 | 0.6% | 1 |
| Motorcycle suspension | 0.30 | 0.6% | 1 |
| Motorcycle brakes | 0.30 | 0.6% | 1 |
| Motorcycle lamps and reflectors | 0.30 | 0.6% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1998 Triumph Speed Triple 955i has an MOT pass rate of 89.6% based on 164 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 20,561 miles on the odometer. With a 10.4% failure rate, the 1998 Speed Triple 955i is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1998 Triumph Speed Triple 955i, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle steering: Check for excessive steering wheel play (more than a few inches of free movement). Listen for whining from the power steering pump. Look for fluid leaks under the car near the front wheels. With relatively low average mileage of 20,561 miles, many of these vehicles are still in good mechanical condition.
Motorcycle steering — 0.6% of failures
Motorcycle steering issues account for 0.6% of MOT failures on 1998 Triumph Speed Triple 955i models. Steering failures include excessive play in the steering wheel, leaking power steering fluid, worn track rod ends, and damaged steering rack. These affect vehicle control and are closely related to suspension wear. Typical repair costs: £150–600. Pre-MOT check: Check for excessive steering wheel play (more than a few inches of free movement). Listen for whining from the power steering pump. Look for fluid leaks under the car near the front wheels.
Motorcycle suspension — 0.6% of failures
Motorcycle suspension issues account for 0.6% of MOT failures on 1998 Triumph Speed Triple 955i models. 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 — 0.6% of failures
Motorcycle brakes issues account for 0.6% of MOT failures on 1998 Triumph Speed Triple 955i models. 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).
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.