MOT for Motorcycles: What Gets Tested and How to Prepare

The motorcycle MOT test UK applies to all motorcycles, mopeds, and motor tricycles that are over three years old and used on public roads. While the principles are similar to a car MOT, the inspection process differs in some important ways — there is no emissions rolling road for most bikes, for instance, and the checks are adapted to the unique construction of two-wheelers. Whether you ride a lightweight 125 cc commuter or a litre-class superbike, understanding what the tester looks for gives you a significant advantage when it comes to preparation.

Which Motorcycles Need an MOT?

Any motorcycle or moped first used on public roads more than three years ago requires an annual MOT. This includes:

• Motorcycles over 50 cc
• Mopeds up to 50 cc, including electric mopeds
• Motor tricycles (three-wheeled vehicles without a car body)
• Sidecars fitted to a motorcycle

Classic bikes are not exempt from the motorcycle MOT test UKsimply by virtue of their age — unlike cars manufactured before 1960, all motorcycles require an MOT regardless of age unless they are officially registered as historic vehicles and used only for exhibitions or shows.

What the Tester Checks: Key Inspection Areas

The DVSA motorcycle MOT inspection covers the following main categories:

• Lights — headlight, tail light, brake light (activated by both front and rear brakes), indicators (if fitted), and number plate light
• Steering — the headstock bearings are checked for play and roughness; handlebars must be secure and at the correct height
• Brakes — both front and rear brakes are tested for efficiency using a rolling road brake tester; brake pads, discs, and drums are inspected visually for wear and damage
• Tyres — minimum 1 mm tread depth across three-quarters of the tyre width, no cuts, bulges, or exposed cords; tyres must be suitable for the vehicle
• Wheels — rims checked for cracks, damage, and correct spoke tension (on spoke wheels)
• Chain and sprockets — chain tension and wear are checked; a severely worn chain or sprocket is a failure item
• Frame and structure — visible cracks or damage to the frame, subframe, and footrests
• Exhaust — must be secure, free from excessive leaks, and not dangerously noisy
• Mirrors — at least one mirror is required; it must provide an adequate rearward view
• Horn — must be audible and in working order
• Number plate — correct font, spacing, and secure fixing

Common Motorcycle MOT Failure Points

Understanding the most frequent reasons bikes fail the motorcycle MOT test UK helps you focus your preparation where it matters most. According to DVSA data, the most common failure categories for motorcycles mirror those for cars — lighting and signalling faults account for a large proportion of failures, followed by tyre and brake issues.

Specifically for motorcycles, watch out for:

• Blown rear brake light bulbs — often forgotten because riders can’t easily see them
• Indicators that flash too quickly or too slowly due to a failed bulb on the circuit
• Worn front brake pads — disc wear is harder to monitor on bikes without caliper inspection windows
• Overly worn or stretched drive chain — leads to sprocket damage and a failure
• Headstock bearing play — common on bikes over 30,000 miles that have not had the bearings replaced
• Aftermarket exhausts that are too loud or not road-legal

For a broader look at MOT failure patterns across all vehicles, see our guide to common MOT failures.

How to Prepare Your Motorcycle for Its MOT

A methodical pre-MOT check takes under an hour and dramatically improves your chances of a first-time pass. Work through this routine a week before the test so you have time to order any parts needed:

• Walk around the bike and operate every light switch — headlight on dipped and main beam, both front and rear brake levers triggering the brake light, indicators front and rear, number plate light
• Measure tyre tread with a depth gauge; replace any tyre below 2 mm as a precaution, since the legal minimum of 1 mm leaves little margin
• Check chain tension and lubrication; most manufacturers specify 20–30 mm of free play at the midpoint — check your owner’s handbook
• Inspect brake pads through the caliper; most pads have a wear indicator groove that should still be visible
• Grip the top of each fork leg and push forward — any looseness in the headstock indicates worn bearings
• Confirm your number plate is clean, undamaged, and in the correct font

Checking Your Motorcycle’s MOT History Before Buying

If you are considering buying a used motorcycle, reviewing its full MOT history is one of the most powerful due-diligence steps available to you. Every recorded test since 2005 is stored on the DVSA database and is accessible for free by registration number. This shows you all past failures, advisories, and — crucially — the mileage recorded at each test, letting you spot potential clocking at a glance.

You can also run a quick MOT check to verify that the bike currently has a valid MOT and to see when it expires. Never buy a motorcycle without confirming this basic information first — riding without a valid MOT is illegal and invalidates most insurance policies.

After the Test: Passes, Failures, and Advisories

If your bike passes, you will receive a VT20 certificate and the result is logged electronically on the DVSA system. Your new MOT is valid for 12 months. If the bike fails, you will receive a VT30 refusal notice listing all the failure items. You can have repairs carried out at the same garage and request a partial retest (free if carried out on the same day, or at reduced cost within ten working days).

Advisory notices are items that are not yet at failure level but are expected to deteriorate. Take these seriously on a motorcycle — items like marginal tyre tread or a slightly worn chain can reach failure condition faster than you might expect, particularly if you ride year-round. Addressing advisories promptly is good practice for any rider who wants their motorcycle MOT test UK to be straightforward next time around.