A motorcycle cover is a smaller purchase than a car cover and an easier one to get wrong. Bikes present a shape that fabric struggles with: hot exhaust pipes, sharp mirror stalks, exposed levers, and a high centre of gravity on a narrow footprint. Every one of those is a way for a badly chosen cover to fail, or worse, to melt, tear or blow the bike over.
This guide covers what to look for, how to size one, the safety points that are specific to motorcycles, and how to make a cover last. It applies to cruisers, sportbikes, tourers, adventure bikes and scooters alike.
- Why Bikes Need a Cover More Than Cars
- Getting the Size Right
- Features That Matter
- Heat Shields and Hot Exhausts
- Wind: The Number One Failure
- Indoor vs Outdoor Covers
- Mistakes That Damage Bikes
- Making a Cover Last
- Frequently Asked Questions
Why Bikes Need a Cover More Than Cars
Almost everything is exposed
A car hides its mechanicals under bodywork. On a motorcycle the engine cases, forks, brake and clutch levers, chain, spokes and fasteners all sit in the weather. Corrosion starts on hardware and unpainted alloy long before it appears on a tank.
Chrome and polished alloy pit quickly
Chrome exhausts, engine cases and polished rims are the parts that make a bike look expensive, and they are the first things to spot and pit from rain, dew and road salt. Once chrome pits, it does not polish back.
Seats and plastics degrade in sun
Vinyl seats crack, fairings fade, and instrument lenses cloud. On a bike, all of it is exposed to direct overhead sun with nothing shading it.
Bikes are stored more than they are ridden
In most climates a motorcycle sits for a substantial part of the year. Long dormant periods are exactly when corrosion, dust and rodents cause damage.
A covered bike attracts less attention
An uncovered bike advertises exactly what it is and how easy it might be to take. A cover hides the model, the condition, and whether it has a disc lock fitted.
Getting the Size Right
Motorcycle covers are sold by size band rather than by exact model, so you match the cover to your bike's dimensions. Measure three things:
- Overall length, front tyre to rear tyre at the widest point of the bodywork.
- Handlebar width, mirror tip to mirror tip, since this is usually the widest point.
- Overall height, ground to the top of the screen, top box or backrest, whichever is tallest.
Rules of thumb by type:
| Bike type | Typical length | Watch out for |
|---|---|---|
| Scooter or moped | Up to 80 in | Tall screens add height, not length |
| Standard or naked | 80 to 90 in | Wide bars on some naked bikes |
| Sportbike | 80 to 90 in | High tail and tall mirrors |
| Cruiser | 90 to 100 in | Forward controls and wide bars |
| Touring or bagger | 100 to 110 in | Panniers, top box, fairing screen |
| Adventure bike | 90 to 100 in | Tall screen, hand guards, crash bars |
If you are between sizes, go up. A slightly generous cover that is properly cinched down beats a tight one that will not reach the wheels. Too small is worse than too large, because a tight cover leaves the lower half of the bike exposed and puts constant tension on the seams.
Fit with accessories mounted. A top box, a tall touring screen or hard panniers can add a foot of length or several inches of height, and a cover sized for the bare bike will not go on.
Features That Matter
- Breathable fabric. The single most important feature, for the same reason it matters on cars. Condensation forms on cool metal overnight, and under a sealed cover it sits on chrome and alloy. That is how a cover causes the corrosion it is meant to prevent. Background in waterproof vs. water-resistant.
- Heat-resistant exhaust panels. Non-negotiable on any outdoor cover. More below.
- Soft inner lining. The inside touches your tank and fairings every time. It should be soft enough not to mark clear coat.
- Elasticated hem. Pulls the cover in under the bike so wind cannot get beneath it.
- Belly straps. One or two straps passing under the bike, buckled on the other side. This is what stops the cover lifting.
- Lock grommets. Reinforced eyelets front and rear so you can pass a cable or disc lock through, securing the cover and the bike together.
- Vents. Mesh panels let pressure escape so the cover does not balloon in wind.
- Reflective strips. Useful if the bike parks on a street or in a shared garage.
- A storage bag. Small thing, but a cover you can pack under the seat is a cover you will actually take with you.
Heat Shields and Hot Exhausts
This is the point most specific to motorcycles, and the one people learn the hard way. A hot exhaust will melt a synthetic cover. On a header pipe it can happen in seconds.
Two defences, and you want both:
- Heat-resistant panels in the fabric where the exhaust sits, standard on any decent outdoor motorcycle cover.
- Waiting. Even with heat panels, let the exhaust cool before covering. Fifteen to twenty minutes after a ride is a sensible minimum, longer after hard riding.
A melted cover is the visible damage. The invisible damage is molten synthetic bonding to a hot header, which is genuinely difficult to remove without marking the finish.
Wind: The Number One Failure
A motorcycle presents a large covered area on a narrow footprint, with a high centre of gravity. A cover that catches wind does not just blow off, it can pull the bike off its side stand. That turns a cover problem into a bodywork bill.
How to prevent it:
- Use the belly straps every time, cinched until there is no slack.
- Pass a cable or disc lock through the front and rear grommets so the cover is physically attached to the bike.
- Park on the side stand pointing into any prevailing wind where you can, and use the centre stand if the bike has one.
- Choose a cover with vents so pressure escapes rather than inflating it.
- In sustained high wind, take the cover off. No cover survives a gale, and a flapping cover marks paint.
The same principles apply on four wheels, and the detail is worth reading: how to keep a cover from blowing off.
Indoor vs Outdoor Covers
| Indoor cover | Outdoor cover | |
|---|---|---|
| Job | Dust barrier, light contact protection | Rain, UV, salt, wind |
| Fabric | Soft, light, single layer | Multi-layer, water-resistant, UV treated |
| Heat panels | Not usually needed | Essential |
| Straps | Rarely | Always |
| Weight | Packs very small | Bulkier, still bag-able |
A garage stops rain and sun but not dust, and dust is abrasive the moment you wipe it off a tank. If your bike lives indoors, a light indoor cover still earns its place, and it is far more pleasant to handle than an outdoor cover you do not need.
Mistakes That Damage Bikes
- Covering a hot bike. Melted fabric on a header. Let it cool.
- Covering a wet or dirty bike. Trapped water accelerates corrosion on chrome and alloy, and grit under fabric scratches the tank.
- Using a tarp or a plastic sheet. Zero breathability, abrasive surface, and it will sweat moisture straight onto your chrome.
- Skipping the belly straps. The most common cause of a bike ending up on its side.
- Buying too small. Leaves the lower half exposed and stresses every seam.
- Forgetting the accessories. Measure with the top box and screen fitted.
- Long-term storage under a sealed cover. Months of trapped condensation is how a bike emerges in spring with pitted fasteners.
Making a Cover Last
- Rinse it before it gets grimy. Embedded grit wears the water-repellent coating from both sides.
- Wash gently. Mild soap, cool water, no fabric softener, never a machine dryer. Method in how to clean a cover.
- Dry it fully before packing. A damp cover in a closed bag grows mildew, which ruins fabric permanently.
- Fold rather than stuff. Random creasing cracks the coating along the fold lines.
- Reproof when water stops beading. A spray-on DWR treatment restores most of the original repellency.
Realistic lifespan expectations, which carry across from car covers: how long do covers last.
Frequently Asked Questions
What size motorcycle cover do I need?
Measure overall length from tyre to tyre, width at the mirror tips, and height to the top of the screen or top box. Match those to the cover's size band, and if you fall between sizes choose the larger one. Always measure with accessories fitted, since a top box or tall screen changes the dimensions significantly.
Can a motorcycle cover melt on the exhaust?
Yes, and quickly. Use a cover with heat-resistant panels where the exhaust sits, and let the pipes cool for at least fifteen to twenty minutes after riding before covering. Heat panels reduce the risk, they do not eliminate it on a glowing header.
Will a cover blow off or knock my bike over?
It can, which is why belly straps matter more on a bike than on a car. Cinch the straps under the machine, pass a cable or disc lock through the grommets so the cover is attached to the bike, use the centre stand if you have one, and remove the cover entirely in sustained high wind.
Should a motorcycle cover be waterproof or breathable?
Both. Water resistance keeps rain off, and breathability lets overnight condensation escape. A sealed non-breathable cover traps moisture against chrome and bare alloy, which causes exactly the corrosion the cover is supposed to prevent.
Do I need a cover if my bike is in a garage?
A light indoor cover is still worth it. A garage stops rain and sun but not dust, which is abrasive as soon as you wipe it off a tank, and it does not prevent contact damage from tools, bicycles or other vehicles in a tight space.
Can I use a car cover on a motorcycle?
Not sensibly. A car cover has no heat-resistant exhaust panels, no belly straps, and a shape that leaves large amounts of loose fabric to catch wind. Loose fabric on a bike is both a paint risk and a tip-over risk.
Does a cover deter theft?
It helps, but it is not security. A cover hides the model and condition, so the bike is less of a target, and lock grommets let you secure the cover to the machine. Use it alongside a disc lock, chain or ground anchor rather than in place of them.