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Harley-davidson Fxdbi Dyna Street Bob MOT Pass Rate

Overall pass rate across all manufacture years, based on 1,297 real MOT test results. Failure rate: 11.3%.

88.7%
Pass Rate
11.3%
Fail Rate
1,297
Total Tests
Motorcycle lighting and signalling
Top Failure

Data from official DVSA MOT testing records

Harley-davidson Fxdbi Dyna Street Bob MOT Reliability Overview

The Harley-davidson Fxdbi Dyna Street Bob is a niche vehicle in the UK, with 1,297 MOT test results recorded in our database spanning 2 manufacture years. It has an overall MOT pass rate of 88.7% and a failure rate of 11.3%, which is well above the UK average of approximately 37%.

Based on this data, the Harley-davidson Fxdbi Dyna Street Bob earns a "Excellent" reliability rating. The average Harley-davidson Fxdbi Dyna Street Bob presents for MOT with approximately 14,489 miles on the clock. Manufacture year matters: 2006 models achieve the highest pass rate at 89.7%, while 2005 models have the lowest at 82.7%. This 7.0 percentage point difference suggests notable variation in build quality or component durability across production years.

The most common MOT failure for the Harley-davidson Fxdbi Dyna Street Bob is Motorcycle lighting and signalling, affecting 5.8% 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 fuel and exhaust at 3.5%. Motorcycle reg plates and vin rounds out the top three at 3.0%. 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

Motorcycle lighting and signalling 5.8%
Motorcycle fuel and exhaust 3.5%
Motorcycle reg plates and vin 3.0%
⚖️ Compare

Best Year to Buy

📊
Insufficient data per manufacture year for this analysis

📈 How Each Vintage Ages

📈
Insufficient data per manufacture year for this analysis

Pass Rate by Manufacture Year

89.7%
Tests Avg Mileage 14,236Top Failure Motorcycle lighting and signalling
82.7%
Tests Avg Mileage 16,731Top Failure Motorcycle fuel and exhaust

* 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
MOT failure categories ranked by failure rate
RankFailure CategoryRate (%)Count
1Motorcycle Lighting And Signalling6.3%82
2Motorcycle Fuel And Exhaust3.6%47
3Motorcycle Reg Plates And Vin3.3%43
4Motorcycle Lamps And Reflectors2.3%30
5Motorcycle Brakes2.0%26
6Motorcycle Tyres And Wheels1.5%20
7Motorcycle Structure And Attachments1.5%19
8Motorcycle Steering And Suspension1.2%15
9Motorcycle Tyres0.9%12
10Identification Of The Vehicle0.7%9
11Motorcycle Steering0.2%3
12Motorcycle Suspension0.2%2
13Brakes0.2%2
14Motorcycle Drive System0.2%2
15Motorcycle Body And Structure0.1%1

Failures per 10,000 Miles

avg. 14,489 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 lighting and signalling4.36% per 10K miMotorcycle fuel and exhaust2.50% per 10K miMotorcycle reg plates and vin2.29% per 10K miMotorcycle lamps and reflectors1.60% per 10K miMotorcycle brakes1.38% per 10K miMotorcycle tyres and wheels1.06% per 10K miMotorcycle structure and attachments1.01% per 10K miMotorcycle steering and suspension0.80% per 10K miMotorcycle tyres0.64% per 10K miIdentification of the vehicle0.48% per 10K miMotorcycle steering0.16% per 10K miMotorcycle suspension0.11% per 10K miBrakes0.11% per 10K miMotorcycle drive system0.11% per 10K miMotorcycle body and structure0.05% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Motorcycle lighting and signalling4.366.3%82
Motorcycle fuel and exhaust2.503.6%47
Motorcycle reg plates and vin2.293.3%43
Motorcycle lamps and reflectors1.602.3%30
Motorcycle brakes1.382.0%26
Motorcycle tyres and wheels1.061.5%20
Motorcycle structure and attachments1.011.5%19
Motorcycle steering and suspension0.801.2%15
Motorcycle tyres0.640.9%12
Identification of the vehicle0.480.7%9
Motorcycle steering0.160.2%3
Motorcycle suspension0.110.2%2
Brakes0.110.2%2
Motorcycle drive system0.110.2%2
Motorcycle body and structure0.050.1%1

🚗 Similar Cars to Consider

🚗
No comparable models

Mileage at MOT

14,489
Mean
6,117
Median
3,184
25th Percentile
12,901
75th Percentile

The average Harley-davidson Fxdbi Dyna Street Bob has 14,489 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.

7.80%
Fail Rate per 10K Miles
Average across all makes: 5.38%
11.3%
Overall Fail Rate
14,489 avg miles
🔴 Poor — above average failure rate

The Harley-davidson Fxdbi Dyna Street Bob has a mileage-adjusted failure rate of 7.80% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.

About Harley-davidson Fxdbi Dyna Street Bob MOT Data

The Harley-davidson Fxdbi Dyna Street Bob is a niche vehicle in the UK, with 1,297 MOT test results recorded in our database spanning 2 manufacture years. It has an overall MOT pass rate of 88.7% and a failure rate of 11.3%, which is well above the UK average of approximately 37%.

For Harley-davidson Fxdbi Dyna Street Bob owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle lighting and signalling and motorcycle fuel and exhaust 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 Fxdbi Dyna Street Bob is likely to perform.

Motorcycle lighting and signalling — 5.8% of failures

Motorcycle lighting and signalling issues account for 5.8% of MOT failures on the Harley-davidson Fxdbi Dyna Street Bob. 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 fuel and exhaust — 3.5% of failures

Motorcycle fuel and exhaust issues account for 3.5% of MOT failures on the Harley-davidson Fxdbi Dyna Street Bob. Motorcycle fuel and exhaust 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 reg plates and vin — 3.0% of failures

Motorcycle reg plates and vin issues account for 3.0% of MOT failures on the Harley-davidson Fxdbi Dyna Street Bob. Motorcycle reg plates and vin 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 Harley-davidson Fxdbi Dyna Street Bob?

Based on 1,297 MOT tests in our database, the Harley-davidson Fxdbi Dyna Street Bob has an overall pass rate of 88.7% (11.3% fail rate).

What are the most common MOT failures on a Harley-davidson Fxdbi Dyna Street Bob?

The top 3 reasons a Harley-davidson Fxdbi Dyna Street Bob fails its MOT are: 1. Motorcycle lighting and signalling (5.8%), 2. Motorcycle fuel and exhaust (3.5%), 3. Motorcycle reg plates and vin (3.0%). Check these areas before booking your MOT.

Is the Harley-davidson Fxdbi Dyna Street Bob reliable?

With a 11.3% MOT failure rate, the Fxdbi Dyna Street Bob is more reliable than average compared to the UK average of ~40%.

What should I check before an MOT on my Harley-davidson Fxdbi Dyna Street Bob?

Based on failure data, focus on: Motorcycle lighting and signalling (5.8%); Motorcycle fuel and exhaust (3.5%); Motorcycle reg plates and vin (3.0%). 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.

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