Should I check the MOT history before buying a 2020 Triumph Bonneville?

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 2020 Triumph Bonneville?

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 2020 Triumph Bonneville?

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 2020 Triumph Bonneville reliable?

Based on MOT data from 1,175 vehicles, the 2020 Triumph Bonneville has a first-time MOT pass rate of 94.4%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 2020 Triumph Bonneville?

The most frequently recorded MOT issues on the 2020 Triumph Bonneville are: Front Tyre worn close to the legal limit (23.1% of vehicles), Exhaust noisy (20.3% of vehicles), Front Brake pad(s) close to minimum limit (14.3% of vehicles). These figures are based on actual MOT test records — search a specific registration on CarHunch to see its individual history.

Do I need an HPI check when buying a 2020 Triumph Bonneville?

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 Bonneville (2020)

1,175 real MOT outcomes analysed • 94.4% first-time pass rate

2020 Triumph Bonneville

CarHunch analysed 1,175 real MOT records for the 2020 Triumph Bonneville. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
Which year to buy? →

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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2020 Triumph Bonneville is a genuinely reliable bike, with a 94.4% first-time pass rate that sits well above the UK average of 80%—and the dangerous defect rate of just 3.6% is reassuringly low for buyer peace of mind. This is a motorcycle that holds up well under MOT scrutiny, suggesting competent engineering and owner care.

At just over 4,000 miles median mileage, these Bonnevilles are lightly used for their age, which partly explains the strong pass rate, but even accounting for that the 0.21 average failures per vehicle is excellent. When you're shopping for one, the low advisory count of 0.6 per vehicle means you're not walking into a cascade of small nagging problems—just inspect the service history and you've got a solid prospect.

The 2020 Triumph Bonneville passes its MOT first time more often than most UK vehicles (94.4% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

First-time pass

94.4%

UK average ~80%

Better than average

Dangerous (ever)

3.6%

At least once in MOT history

Check this vehicle

Avg failures / car

0.21

Over 2.9 tests on record

Low

Typical mileage

Middle half: 2k–7k

For context

✅ Good baseline reliability. A 94.4% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

These stats describe 1,175 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.

A solid choice — agree?

What tends to go wrong

Across 1,175 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 23.1%

Front Tyre worn close to the legal limit · Rear Tyre worn close to the legal limit

Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.

Exhaust & emissions 20.3%

Exhaust noisy

Brake wear 14.3%

Front Brake pad(s) close to minimum limit · Rear Brake pad(s) close to minimum limit · Front Brake indicates slight fluctuation of brake effort · …

Ask the seller when brakes were last serviced. If they don't know, factor in the cost.

Lighting 8.8%

Headlamp aim too high · Rear reflector missing · Drive chain slightly loose · …

Usually cheap to fix. Worth confirming all lights work before collecting.

Suspension & steering 5.3%

Steering headbearing slightly stiff or notchy

Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.

Other issues 3.8%

Registration plate does not conform to the specified requirements

Data covers a 3-year window centred on 2020.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 1,175 Triumph Bonneville cars.

Before you buy a 2020 Triumph Bonneville

Based on MOT data from 1,175 vehicles — here's what to check.

📋 Check the full MOT history. 3.6% 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

Colour Breakdown

Based on 30,017 Triumph Bonneville vehicles registered in the UK — across all years. From DVLA registration records.

Black 38.4%

11,529

Red 19%

5,708

Blue 12.4%

3,728

White 9.2%

2,764

Green 6.3%

1,882

Silver 4.7%

1,410

Grey 3.1%

919

Gold 2.7%

802

Orange 1.9%

557

Maroon 1%

294

Purple 0.7%

225

Multi-colour 0.7%

199

Mileage Distribution

Most 2020 Triumph Bonneville 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.

4,045

typical

2,405

low mileage

6,601

high mileage

Half of all 2020 Triumph Bonneville vehicles fall between 2,405 and 6,601 miles.

Is the mileage you're seeing normal?

✓ Under 2,405 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.

✓ 2,405–6,601 miles — normal for age. This is where most 2020 Triumph Bonnevilles sit.

⚠ Over 8,911 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2020 Triumph Bonneville — Still on the Road

Almost all 2020 Triumph Bonnevilles are still on the road.

Strong survival — 1,018 vehicles still getting MOTs in 2025, 98% of the peak.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.

MOT History Averages

2.9

Avg MOT tests per vehicle

0.21

Avg failures per vehicle

0.6

Avg advisories per vehicle

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

1980 1981 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2021

Or browse all models: Triumph →

Compare with another model

See how the 2020 Triumph Bonneville stacks up against a rival.

A solid choice — agree?