Soft bags are great until you need to leave your gear on the bike overnight, ride through a downpour, or pack for a week-long trip. A motorcycle top case solves all three: it locks, it’s fully waterproof, and it holds far more than a tail bag or tank bag ever will. Bolt one to your rear rack and you’ve got a hard-shell trunk that turns your bike into something you can actually commute or tour with.
We rounded up five of the best motorcycle top cases on the market right now, spanning compact 25L boxes for smaller bikes up to 65L trunks built for long-distance touring. As always, we verify current availability and pricing on Amazon before publishing, so what you see below reflects what’s actually in stock today.
What to Look for in a Motorcycle Top Case
Before diving into the picks, a few things worth knowing:
- Capacity vs. your bike: A 25 to 30L box suits commuters and smaller bikes without overwhelming the rear end. 45L fits a full-face helmet plus gear. 56L and up is built for touring and multi-day trips.
- Mounting system: Most top cases use a universal base plate that bolts to your existing rear rack. Confirm your bike has a rack rated to carry the case’s weight before buying, since the mount is only as strong as what it’s bolted to.
- Material: Aluminum cases are more rigid and dent-resistant, and generally look more premium. ABS plastic cases are lighter and usually cheaper, with slightly more flex.
- Locking and quick-release: Nearly every case on this list includes an integrated lock. Quick-release mounts let you pull the case off and carry it inside when parked, which matters more than it sounds like it would.
- Backrest cushion: Larger cases often double as a passenger backrest. If you ride two-up, check whether the case includes a back cushion pad.
1. KEMIMOTO 45L Plastic Top Case — Best Value
The KEMIMOTO 45L strikes the best balance of price and capacity on this list. It’s built from waterproof plastic rather than aluminum, which keeps the cost down without sacrificing the essentials: a full lining, an integrated lock, and a back cushion pad for a passenger. 45L is enough for a full-face helmet plus a jacket or a weekend’s worth of gear, and the detachable quick-release base means you’re not stuck bolting and unbolting it every time you park.
Pros: Strong price for the capacity, integrated lock and back cushion included, quick-release detachable mount, fully waterproof
Cons: Plastic shell flexes more than aluminum under heavy loads; fewer color options than the aluminum models
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2. VEVOR 45L Aluminum Alloy Top Case — Best Overall
The VEVOR is the most reviewed case on this list by a wide margin, and it earns that trust with a genuinely nicer build than most cases at this price. The aluminum alloy shell is more rigid than plastic, the leather-lined interior looks and feels premium, and it still includes the lock and back cushion you’d expect. At 45L it holds a full-face helmet comfortably with room for a jacket or gloves, making it the safest all-around pick for most riders.
Pros: Rigid aluminum alloy construction, leather-lined interior, huge review base to back up reliability, includes lock and back cushion
Cons: Heavier than the plastic options; mounting hardware takes a bit longer to install correctly the first time
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3. Gurblofy 25L Compact Aluminum Top Case — Best for Smaller Bikes
Not every bike needs, or can handle, a 45L-plus box hanging off the back. The Gurblofy 25L is sized for commuters and smaller-displacement bikes, adding secure lockable storage without visually or physically overwhelming the rear end. It’s still aluminum, still includes an anti-theft lock and back cushion, and mounts to a universal bracket, just scaled down to fit bikes where a bigger case would look and feel out of place.
Pros: Sized right for smaller and mid-size bikes, aluminum build at a compact size, anti-theft lock included, large review base backing reliability
Cons: 25L won’t fit a full-face helmet alongside much else; not built for multi-day touring loads
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4. KEMIMOTO 56L Aluminum Alloy Top Case — Best for Touring
Once you’re planning multi-day trips, 45L starts to feel tight. The KEMIMOTO 56L steps up to genuine touring capacity while keeping the aluminum alloy construction and lined interior of KEMIMOTO’s smaller case. It’s large enough for a full-face helmet, rain gear, and several days of clothing, and the lock and back cushion are both included standard. This is the size where a top case stops being a convenience and starts being genuine luggage.
Pros: Genuine multi-day touring capacity, aluminum alloy build, includes lock and back cushion, lined interior protects gear
Cons: Adds noticeable weight and rear bulk; smaller review base than KEMIMOTO’s more established 45L model
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5. Gurblofy 65L Aluminum Top Case — Best Splurge
At 65L, this is the largest case on the list, and the reviews back up that it holds up to the claim. Two full-face helmets fit with room to spare, or pack it full for a week-long trip without needing saddlebags at all. The aluminum shell, integrated lock, and back cushion are all standard, and it’s the most proven large-capacity option here.
Pros: Massive 65L capacity fits two helmets or a week of gear, strongest review base of any large case on this list, aluminum build, back cushion included
Cons: The highest price on this list; that much rear weight and bulk isn’t necessary for most riders’ everyday use
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Which One Should You Get?
If you just want the safest, most proven all-around motorcycle top case, the VEVOR 45L is the pick, it has by far the largest review base on this list and the aluminum build looks and feels premium. Riders watching their budget should look at the KEMIMOTO 45L plastic case instead, it gets you nearly the same capacity for less money. Smaller or mid-size bikes are better served by the Gurblofy 25L, while riders planning real multi-day trips should size up to the KEMIMOTO 56L or, if budget allows, the 65L Gurblofy.
A top case handles what won’t fit in a saddlebag or tank bag, so many riders end up running one of each for different parts of a trip.
Frequently Asked Questions
Will a motorcycle top case fit my bike?
Most top cases in this roundup use a universal base plate designed to bolt onto a standard rear luggage rack. If your bike doesn’t already have a rack, you’ll need to add one before a top case will mount securely.
Are motorcycle top cases actually waterproof?
The cases on this list are rated waterproof, but real-world sealing varies by how well the lid gasket is maintained. It’s still worth using a dry bag or liner inside for anything electronics or paperwork that absolutely cannot get wet.
Can I fit a full-face helmet inside?
Generally yes, starting at 45L. Compact 25 to 30L cases are usually too small for a full-face helmet alongside anything else, so check the listed capacity against your helmet size before buying.
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