If you do your weekly shopping for yourself and three kids in your WEEROCK tricycle rear basket (it’s huge) you’re going to be thrilled. It’s larger than two full milk crates put together, and priced roughly the same. So, it’s great for those who haul large volumes such as a farmer’s market shopper, someone who takes a weekend trip to the beach with lots of gear, or a person who shops for themselves and a family of four each week.

It was made specifically for trikes and wider rear ends, so while it may have limited appeal due to its intended use, there is a very dedicated group of enthusiasts who love the WEEROCK basket.

WEEROCK tricycle rear basket with large capacity

Capacity and Build

With a capacity of 55.1 liters, the WEEROCK tricycle rear basket is essentially a small wheelbarrow. While many Baskets are made with a folding metal wire frame to allow them to lay down when not in use, the WEEROCK basket folds just as easily and also has a waterproof fabric liner as opposed to an afterthought. Like all wire Baskets, it uses a steel rod frame coated with a durable powder coat finish. Due to its enormous size, however, the manufacturer had to increase the gauge of the wire used to build the basket so it wouldn’t sag into an egg shape when fully loaded.

Reviewers on Amazon say that when using this on adult trikes that the basket remains rigid even when fully loaded. As mentioned above, there were 50+ reviewers (all of whom gave it a 4-star rating), and virtually all complaints involved shipping damage rather than design issues.

On the Bike

This basket is designed to mount via bolt-through holes directly onto trike rear axles and wide cargo racks. If you want to adapt it to a standard two-wheeled bicycle rack, you’ll need to purchase a pair of P-clamps and spend some time getting everything positioned properly since the basket is quite wide. When mounted, the actual physics of carrying 55 liters of goods low and centered behind the rear axle creates more stability than would otherwise exist with panniers hung off one side of the bike.

WEEROCK large folding rear basket detail

In reality, the largest amount of weight you’d realistically be able to carry in this basket would be in the 40 to 50-pound range before you begin testing the welds of an average bike rack rather than the basket. Obviously, trike frames with adequate cargo ratings could support this amount of weight without issue. However, most standard commuter racks would likely fail long before the basket did.

What Amazon Reviewers Are Saying

The 4.5 star rating across 50+ reviews is one of the highest we’ve seen in this category. The positives include comments about the basket providing sufficient capacity to replace automobile-based shopping trips, as well as the fact that the waterproof liner withstands rainy conditions. Negative comments regarding this basket included complaints about a couple of users experiencing excessive wear-and-tear at the folded joint area(s), as well as one user complaining about paint chipping at the folded area(s). No users complained about catastrophic failure of either type. Therefore, we consider this a success from a reliability standpoint given the materials and price-point.

Who Is This For

Individuals riding trikes, individuals using cargo e-bikes with wide rear decks, and individuals currently utilizing awkward backpack math for their grocery shopping needs. If you ride a standard-width bike, please measure your rack width prior to purchasing this basket as it will hang beyond a typical bike rack.

While no other basket in our comparison table matches the volume-for-dollar offered by this basket, the closest competitors include purpose-built trike cargo containers with multiple times higher prices and standard bicycle Baskets capable of holding approximately half of this volume. In terms of trike-specific cargo, this basket provides an unchallenged volume-to-price value ratio.

Sizing It Against the Alternatives

As previously stated, no other option in our comparison chart offers anywhere near the 55-liter volume offered by this basket at this price point. Thusly, we end comparisons at the # of liters column.

An alternate way of approaching this situation involves attaching two smaller Baskets (one to each side of a trike’s rear axle) in lieu of one large basket. Using two smaller Baskets allows for balanced loading, increases mounting requirements/hardware, increases tying-down options and decreases overall ease-of-use (due to needing to open/close/open each basket individually.) trike owners often opt for this configuration initially only to later prefer using one large basket, and thusly, most reviewer feedback indicates a strong preference for using one large basket.

The design of the folding mechanism merits particular attention in comparing products. Many rigid cargo Baskets similar in volume to this basket are permanent attachments that add complexity to both storage and transportation. The ability to lay-flat enables owners of larger-volume Baskets to store them on a car-rack or in a garage with far greater ease than would be possible with rigid cargo Baskets.

Long-Term Ownership Notes

Since large wire Baskets concentrate weight on certain parts of the structure (as opposed to dispersing evenly throughout), long-term usage typically results in stress developing along those areas. Mounting bolts working loose under continuous vibrations (such as those created by repeated acceleration/deceleration events) will develop earlier than any structural fatigue-related issues. With consistent seasonal-heavy usage, a bi-weekly torque-check on those mounting bolts should prove entirely sufficient for long-term maintenance purposes. A number of owners have treated checking/tightening their mounting bolts similarly to changing chain lube and report many years of problem-free operation.

Similar to any plastic or rubber part exposed continuously to sunlight, long-term UV exposure will eventually cause stiffness in the waterproof liner material. Replacing said liner with an inexpensive generic version is simple. Some owners merely place a plastic tote within the basket during colder months to provide additional insulation as well as protect their grocery contents from moisture.

Those converting from panniers will find the transition largely psychological as opposed to mechanical. Panniers separate weight and provide locking features. This basket centralizes weight and keeps open. Theft concerns are legitimate for residents living in urban environments. Attaching a cable lock through the basket frame and then wrapping it around their cargo rack will secure the basket (if not necessarily the contained contents).

The Verdict

This basket earns its spot atop this table based upon sheer volume arithmetic alone. And coupled with the aforementioned 4.5-star performance record among 50+ reviewers demonstrates that it delivers that volume reliably. Additionally, being built with a folding frame, waterproof liner and trike-native mounting mechanisms makes it a complete system vs. Mere empty box. If your trike has sufficient width to carry this basket … the next issue is how much use you have for the provided volume of 55 liters. Market shoppers already know that answer.

Cargo Strategy for Big Baskets

Once you own a basket that can haul 55 liters worth of goods … you need to adjust how you pack the goods … and having good habits will make all the difference between being able to use it as an utility tool vs. A movable mess. First, pack flat items against the bottom of the basket first where they provide stability to the base load. Heavy items should always remain low and centered over the axle and light weight compression goods can be packaged in the spaces left by the other goods. By far the most frequent complaint from new owners of large capacity Baskets … is that they treat the basket like a bottomless bin and place weight high on top of each other… which makes windy bridges into white-knuckle rides.

Using bungee cord is important when packing 55-liter capacity Baskets due to the fact that the openings are typically large enough that goods can move sideways in tight spaces. Cross-hatching bungee cords over-top converts a large basket into a locked cargo compartment. Plus having side-handles gives anchors for hooking bungee cords. Daily commuters usually install bungee cords permanently with hooks attached to the same corners as hooks on their existing luggage systems … which reduces load-securing to a 5-second action.

Rain behavior at 55-liter capacity Baskets deserves respect … the waterproof liner provided by WEEROCK will prevent rain from entering the basket, but due to its massive size … it will collect a significant amount of rainwater. Punching “drain” into your planning process will ensure that water doesn't accumulate against your food and the standard solution includes lowering the corner edge of the liner slightly below the rim so rain water drains away instead of accumulating against your groceries.

Frequently Asked Questions

Will it fit a regular two-wheel bicycle?

Yes it will fit … but you'll have to get creative and purchase a pair of P-clamps to attach it to your rack … as it's too wide to hang over a standard rack. Measure before buying.

How much weight can it carry?

You can carry weights up to 40-50 lbs before your rack becomes weaker than your basket.

Is the liner actually waterproof?

The waterproof liner prevents rain and wet foods from entering the basket … but don't expect it to keep electronics dry …. That requires keeping them in a dry bag inside the basket.

Does it fold flat with the liner installed?

Removeable liners make folding easier…. And most owners don't remove it anyway once it's mounted on their trike.

How does it hold up to rain and sun?

Both the powder-coated finish and waterproof liner perform well under rain/sun. Storing it indoors or covering it will slow down coating degradation as it would any steel basket.

Can I attach a child seat on top?

No … because it occupies your rack space completely … choose between cargo or passengers

See how the rest of the category stacks up on the basket and cargo comparison table, and browse more reviews and guides.