Should I check the MOT history before buying a 2008 Triumph Rocket Iii?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2008 Triumph Rocket Iii?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2008 Triumph Rocket Iii?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2008 Triumph Rocket Iii reliable?

Based on MOT data from 151 vehicles, the 2008 Triumph Rocket Iii has a first-time MOT pass rate of 89.7%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

Do I need an HPI check when buying a 2008 Triumph Rocket Iii?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Triumph Rocket Iii (2008)

151 real MOT outcomes analysed • 89.7% first-time pass rate

2008 Triumph Rocket Iii

CarHunch analysed 151 real MOT records for the 2008 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 Compare Models

The 2008 Triumph Rocket III passes its MOT first time in 89.7% of cases, well above the UK average of 80%, and dangerous defects are relatively uncommon at 15.2%—a reassuring sign for a motorcycle this age. Petrol versus diesel doesn't apply here, but the reliability picture is genuinely solid.

These bikes sit at a median of just 11,575 miles, suggesting many are weekend or collector machines rather than daily riders, which explains both the strong pass rate and the 4.3 average advisories (minor issues that don't prevent passing). With only 1.2 failures per vehicle on average, a pre-purchase inspection should focus on whether the machine's been regularly serviced rather than expecting major mechanical problems—check the service history closely, as these cruisers reward consistent maintenance.

We have limited data for the 2008 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

89.7%

UK average ~80%

Better than average

Dangerous (ever)

15.2%

At least once in MOT history

Check this vehicle

Avg failures / car

1.2

Over 11.3 tests on record

High

Typical mileage

12k

Middle half: 7k–18k

For context

These stats describe 151 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 151 Triumph Rocket Iii cars.

Before you buy a 2008 Triumph Rocket Iii

Based on MOT data from 151 vehicles — here's what to check.

📋 Check the full MOT history. 15.2% 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 →
📄 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 Get 20% off via CarHunch

Mileage Distribution

Most 2008 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.

11,575

typical

7,409

low mileage

17,784

high mileage

Half of all 2008 Triumph Rocket Iii vehicles fall between 7,409 and 17,784 miles.

Is the mileage you're seeing normal?

✓ Under 7,409 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.

✓ 7,409–17,784 miles — normal for age. This is where most 2008 Triumph Rocket Iiis sit.

⚠ Over 24,008 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2008 Triumph Rocket Iii — Still on the Road

Numbers are thinning — 67% of 2008 Triumph Rocket Iiis are still active.

78 vehicles still getting MOTs in 2025 — 67% of the peak remain.

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

11.3

Avg MOT tests per vehicle

1.2

Avg failures per vehicle

4.3

Avg advisories per vehicle

Other model years — Triumph Rocket Iii: All Rocket Iii years → Which year to buy? →

2004 2005 2006 2007 2009 2010 2011

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See how the 2008 Triumph Rocket Iii stacks up against a rival.

Average reliability — agree?