HKM-0540115 Folding Reverse Trike Carries Two 48V 7.8Ah Packs Behind a 500W Rear Hub and 14 in Wheels for Errands

500W · 2 × 48V 7.8Ah 749Wh · 14 in · 37 mi · reverse trike · mechanical discs · folds in one second

A Folding Reverse Trike That Stays Upright Without a KickstandTwo Front Wheels and No Balancing

A reverse trike: two driven-steer front wheels and one rear hub motor, 500W with a built-in clutch, fed by two 48V 7.8Ah packs for 749Wh in total and rolling on 14 in wheels with mechanical disc brakes. The frame folds in about a second, the pair of front wheels means you never put a foot down at a light, and it is listed at 15 to 37 miles depending on whether you run one pack or both, and it folds small enough to stand in a hallway rather than needing a garage.

The reason this exists is balance. A bicycle at walking pace in traffic asks you to hold a line with one hand while you signal with the other, and for a lot of riders that is the thing that stops them riding at all. Three wheels and a low seat remove that problem entirely: it stands on its own at a stop, it does not fall over when you park it, and it tracks straight over a wet manhole cover. It also means a rider who has not been on a bike in years can use one on a Saturday.

Two front wheels also mean two front tires to steer, and the geometry that keeps a trike upright makes it feel strange for the first kilometre if you are a lifelong cyclist. The lean is deliberate, not a fault: the frame gives up to 40 degrees of side deviation without tipping, which is the number the maker uses for cornering confidence.

At a Glance

• 500W Rear Hub — Brushless hub with a built-in clutch
• 749Wh Total — Two 48V 7.8Ah packs, run one or both
• 15 to 37 Miles — Single pack and dual pack, listed
• Reverse Trike — Two front wheels, one driven rear wheel
• 14 in Wheels — 14 x 1.95 front, 14 x 2.125 rear
• Folds in a Second — Frame collapses without tools
• Mechanical Discs — Disc brake with a rotor on the front
• 40 Degree Lean — Side deviation before it tips, maker figure
• Standing Stability — Stays upright at a stop and when parked
• LCD Display — Speed, battery and assist on the bar
• Charges Separately — Both packs charge at once, halving the wait
• Front Basket — Carrier ahead of the bars

Frame, Fold and Three Wheels

The frame is a folding spine with a hinge at the middle: release it and the trike collapses into a package you can wheel into a hallway or stand in the back of a car. There is no tool in the sequence, which is the difference between a folder that gets used and one that does not.

Up front there are two wheels on a leaning linkage, and at the back a single driven wheel. The linkage is what makes the trike behave like a bicycle in a corner rather than a shopping trolley, and it is also why the first ride feels odd if you are used to two wheels.

The seating position is upright with the bars well back, and the front carrier sits ahead of the head tube where you can see it. A rider who has stopped cycling because of balance or a hip that does not swing over a top tube is the target customer here.

• Frame: folding spine, single hinge
• Front: two wheels on a leaning linkage
• Rear: one driven hub wheel
• Brakes: mechanical disc
• Tires: 14 x 1.95 front, 14 x 2.125 rear
• Folded: stands on its own

Fitted as shipped: a disc brake on the front wheel, a rear light, a bell, the front carrier and a folding stand that lets the trike sit on its own once collapsed. The 14 in wheels keep the whole thing narrow enough for a doorway.

Motor, Batteries and Range

The motor is a 500W brushless rear hub with a clutch, so the trike coasts when you stop pedalling instead of dragging the motor. It sits in the single rear wheel, which keeps the steering light and the drive line simple, and because it is a hub rather than a mid drive, the pedals and the gears stay ordinary bicycle parts. A clutch in the hub is what lets it freewheel, so the trike rolls like a bicycle when the pack is flat.

Two 48V 7.8Ah packs live in the frame for 749Wh between them. They can be run one at a time, and they charge simultaneously on the supplied adapter, which halves the wait compared with charging them in sequence. Each pack has its own charging port on the spine, and each has a key lock, so you can leave one on the trike while the other charges indoors. Each pack is light enough to carry in one hand.

Range is listed at 25 to 30 km on one pack and 50 to 60 km on both, which is roughly 15 to 19 miles on a single battery and 31 to 37 on the pair. Cold weather and a heavy rider pull both numbers down, so plan a shopping run around the single-pack figure. The second pack is the difference between a there-and-back errand and a longer loop.

Who It Fits and How It Rides

The trike suits riders who want to keep riding rather than riders who want to go fast: a bad hip, a balance problem, a knee that no longer trusts a two-wheeler at a stop. The low step-through spine means you sit down rather than climb on, and you never put a foot down in traffic.

At walking pace it is more stable than any bicycle, and at 15 mph it is calm rather than exciting. Corners need a little more room than a bike because the two front wheels track wide, and potholes on the front are felt twice.

• Shopping runs and errands with a front carrier
• Riders returning after injury, surgery or a long break
• Wet, cobbled and uneven streets where balance is the issue
• Not for speed, off-road use or long touring days

What's in the Box

Before the first ride: unfold the frame and check the hinge is fully seated, check both front axles and the rear axle, set the seat height, then charge both packs. Find an empty car park for the first ten minutes, because the lean takes getting used to.

Color and Finish

Grey and black covers the frame, the folding spine and the front linkage, with black wheels, a black seat and a silver battery case on the spine. It is a tool-like finish rather than a fashion one, which suits a trike that will live in a hallway.

Touch-up paint is available on request. The wear points are the hinge, the front linkage pivots and the frame where the carrier bolts on.

Battery Care and Maintenance

Charge both packs between 20 and 90 percent for daily use and take them to full about once a month so the management systems can balance the cells. If you run one pack at a time, alternate them so neither sits at 100 percent for months. Alternate the pack you use weekly so both age at the same rate.

Check tire pressure weekly on all three wheels, since a soft front tire on a trike pulls the steering to one side, and check the hinge and linkage bolts monthly. Keep the battery contacts clean, and store the packs indoors over winter rather than in a cold shed. Check the hinge play and the linkage bolts on the same schedule, because a folding trike that lives outdoors works those pivots hard.

Specifications

Frequently Asked Questions

Service and Policies

Coverage that lasts beyond the box. Orders ship free with a tracking number in 2 to 5 business days. From delivery, the product is protected for 180 days against manufacturing defects and transit damage, returnable within 30 days for a full refund, and covered by a 24-month parts-and-labor warranty on manufacturing defects. Four policies, one idea: ship it free, protect it for 180 days, take it back for 30, and stand behind it for two years.

HKM-0540115 · folding reverse electric trike · two front wheels on a leaning linkage, one driven rear wheel · 500W brushless rear hub with clutch · two 48V 7.8Ah packs, 749Wh total, key-locked in the spine · 15 to 19 miles single pack, 31 to 37 dual · 15.5 mph listed · mechanical disc brake · 14 x 1.95 front and 14 x 2.125 rear tires · up to 40 degrees of lean, maker figure · LCD display · front carrier · rear light and bell · folds in about a second with no tools · stands upright when folded · grey and black · built for errands, shopping and a return to riding rather than speed · charges both packs at once · each pack key-locked and removable · front basket frame, rear light and bell fitted · stands upright when folded · ships with charger, keys, tool kit and manual