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1991 Honda St1100-l MOT Pass Rate

Pass rate for St1100-l models manufactured in 1991, based on 36 real MOT test results.

66.7%
Pass Rate
33.3%
Fail Rate
36
Total Tests
65,781
Avg Mileage

Data from official DVSA MOT testing records

1991 Honda St1100-l MOT Analysis

The 1991 Honda St1100-l has an MOT pass rate of 66.7% based on 36 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 65,781 miles on the odometer. With a 33.3% failure rate, the 1991 St1100-l is rated as "Good" for MOT reliability.

The leading cause of MOT failure for the 1991 Honda St1100-l is Motorcycle brakes, responsible for 2.8% of failures. 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 range from £150–400.

⚠ Based on limited data (36 tests)

Top failures specific to 1991 models only. The overall St1100-l page may show different rankings.

What Fails Most

Motorcycle brakes 2.8%

What Fails on This Car?

Click a category to see specific failure items.

View as table
MOT failure categories ranked by failure rate
RankFailure CategoryRate (%)Count
1Motorcycle Brakes2.8%1

Failures per 10,000 Miles

avg. 65,781 mi

For 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.

Motorcycle brakes0.42% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Motorcycle brakes0.422.8%1

Mileage Statistics

65,781
Mean
55,699
Median
41,695
25th Percentile
100,186
75th Percentile
5.06% failures per 10K miles

Mileage-adjusted failure rate — accounts for how much this model year is typically driven.

About This Data

The 1991 Honda St1100-l has an MOT pass rate of 66.7% based on 36 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 65,781 miles on the odometer. With a 33.3% failure rate, the 1991 St1100-l is rated as "Good" for MOT reliability.

If you own or are considering buying a 1991 Honda St1100-l, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle brakes: 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). At 65,781 average miles, these vehicles are in the mid-range where component wear starts to become a factor.

Motorcycle brakes — 2.8% of failures

Motorcycle brakes issues account for 2.8% of MOT failures on 1991 Honda St1100-l 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.

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