Should I check the MOT history before buying a 1981 Honda Cx500?

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 1981 Honda Cx500?

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 1981 Honda Cx500?

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 1981 Honda Cx500 reliable?

Based on MOT data from 890 vehicles, the 1981 Honda Cx500 has a first-time MOT pass rate of 82.7%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 1981 Honda Cx500?

The most frequently recorded MOT issues on the 1981 Honda Cx500 are: Front Tyre worn close to the legal limit (18.1% of vehicles), Rear Tyre worn close to the legal limit (16.5% of vehicles), Exhaust noisy (13% 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 1981 Honda Cx500?

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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Honda Cx500 (1981)

890 real MOT outcomes analysed • 82.7% first-time pass rate

1981 Honda Cx500

CarHunch analysed 890 real MOT records for the 1981 Honda Cx500. 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 Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 1981 Honda CX500 edges out the UK average with an 82.7% first-time pass rate compared to 80%, suggesting these bikes have held up reasonably well over more than four decades. However, 9.3% have experienced dangerous defects at some point, which is a modest concern worth investigating on any prospective purchase.

At just under 40,000 miles on average, these machines show typical mileage for their age and have accumulated 1.04 failures and 2.1 advisories per test—a light maintenance burden. If you're considering one, get a pre-purchase inspection focused on the fuel system and brakes, then budget for routine consumables rather than major rebuilds.

The 1981 Honda Cx500 passes its MOT first time at roughly the UK average rate (82.7%) — solid but worth checking this vehicle's history carefully.

⚠️ About 1 in 12 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

82.7%

UK average ~80%

Around average

Dangerous (ever)

9.3%

At least once in MOT history

Check this vehicle

Avg failures / car

1.04

Over 6 tests on record

High

Typical mileage

38k

Middle half: 24k–52k

For context

🔧 Average reliability. Passes at roughly the UK rate — not a standout, not a problem vehicle. Individual history makes all the difference.

🔧 Expect consumable spend. An average of 2.1 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.

🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 890 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?

What tends to go wrong

Across 890 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 18.1%

Front Tyre worn close to the legal limit · Rear Tyre worn close to the legal limit · Rear Tyre tread depth is below minimum requirements of 1.0mm

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

Exhaust & emissions 13%

Exhaust noisy · Exhaust is leaking but is not excessively noisey

Suspension & steering 11.2%

Nearside Front shock absorber has light misting of stanchion · Offside Front shock absorber has light misting of stanchion · Steering headbearing has slight free play · …

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

Brake wear 9.6%

Front Roller brake test indicates a binding brake · Front Roller brake test indicates slight fluctuation of brake effort · Rear Stop lamp does not illuminate immediately a brake applies

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

Lighting 7.8%

Headlamp aim too high · Headlamp aim too low · Exhaust slightly deteriorated

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

Data covers a 3-year window centred on 1981.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 890 Honda Cx500 cars.

Before you buy a 1981 Honda Cx500

Based on MOT data from 890 vehicles — here's what to check.

📋 Check the full MOT history. 9.3% 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

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (100%)	888	82.6%	1.05

Colour Breakdown

Based on 3,560 Honda Cx500 vehicles registered in the UK — across all years. From DVLA registration records.

Black 41%

1,460

Red 28.4%

1,010

Blue 14.7%

523

White 7.5%

268

Green 1.8%

Silver 1.5%

Maroon 1.2%

Brown 1.1%

Grey 1%

Yellow 0.8%

Orange 0.6%

Purple 0.4%

Mileage Distribution

Most 1981 Honda Cx500 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.

37,997

typical

24,161

low mileage

52,037

high mileage

Half of all 1981 Honda Cx500 vehicles fall between 24,161 and 52,037 miles.

Is the mileage you're seeing normal?

✓ Under 24,161 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.

✓ 24,161–52,037 miles — normal for age. This is where most 1981 Honda Cx500s sit.

⚠ Over 70,249 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

1981 Honda Cx500 — Still on the Road

Numbers are thinning — 7% of 1981 Honda Cx500s are still active.

Numbers are declining — 19 vehicles still getting MOTs in 2025 (7% of peak).

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

Avg MOT tests per vehicle

1.04

Avg failures per vehicle

2.1

Avg advisories per vehicle

Other model years — Honda Cx500: All Cx500 years → Which year to buy? →

1980 1982 1983

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See how the 1981 Honda Cx500 stacks up against a rival.

Average reliability — agree?