Triumph

Triumph Rocket Iii (2005)

230 real MOT outcomes analysed • 90.7% first-time pass rate

2005 Triumph Rocket Iii

CarHunch analysed 230 real MOT records for the 2005 Triumph Rocket Iii. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2005 Triumph Rocket III is considerably more reliable than the UK average, with a 90.7% first-time MOT pass rate well ahead of the 80% benchmark. Dangerous defects have occurred in 17% of examples tested, which is borderline concerning but not a dealbreaker for this niche cruiser bike.

These machines are running relatively light at an average of 17,375 miles, suggesting many owners keep them as weekend toys rather than daily transport—expect around 4.8 advisories per vehicle, typically minor wear items rather than structural problems. Before buying, request the full MOT history to check whether dangerous defects cluster in specific areas like brakes or fuel systems, since that will tell you whether it's a one-off or a design weakness.

We have limited data for the 2005 Triumph Rocket Iii — treat the figures below as indicative rather than definitive.

⚠️ Around 1 in 8 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.
First-time pass
90.7%
UK average ~80%
Better than average
Dangerous (ever)
17%
At least once in MOT history
Check this vehicle
Avg failures / car
1.33
Over 12.8 tests on record
High
Typical mileage
13k
Middle half: 9k–22k
For context

These stats describe 230 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

Average reliability — agree?

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 230 Triumph Rocket Iii cars.

UK

Before you buy a 2005 Triumph Rocket Iii

Based on MOT data from 230 vehicles — here's what to check.

  • 📋 Check the full MOT history. 17% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
    Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
  • 🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection ClickMechanic
  • 📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History carVertical Get 20% off via CarHunch

Colour Breakdown

Based on 1,531 Triumph Rocket Iii vehicles registered in the UK — across all years. From DVLA registration records.

Black 55.5%
850
Red 21.6%
330
Blue 12.7%
194
Grey 2.6%
40
Orange 2.2%
34
Yellow 1.8%
27
Silver 1.4%
21
White 0.8%
12
Maroon 0.8%
12
Green 0.4%
6
Purple 0.3%
5

Mileage Distribution

Most 2005 Triumph Rocket Iii vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

13,066
typical
8,869
low mileage
21,677
high mileage

Half of all 2005 Triumph Rocket Iii vehicles fall between 8,869 and 21,677 miles.

Is the mileage you're seeing normal?
Under 8,869 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
8,869–21,677 miles — normal for age. This is where most 2005 Triumph Rocket Iiis sit.
Over 29,263 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2005 Triumph Rocket Iii — Still on the Road

Most 2005 Triumph Rocket Iiis are still being driven.

118 vehicles still getting MOTs in 2025 — 75% of the peak remain.

156 118 2014 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.

MOT History Averages

12.8
Avg MOT tests per vehicle
1.33
Avg failures per vehicle
4.8
Avg advisories per vehicle
Other model years — Triumph Rocket Iii: All Rocket Iii years → Which year to buy? →
2004 2006 2007 2008 2009 2010 2011

Or browse all models: Triumph →

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Compare with another model

See how the 2005 Triumph Rocket Iii stacks up against a rival.

Average reliability — agree?