HKM-5592275 Electric Dirt Bike Runs Two Hub Motors and Two 20Ah Packs for 2080Wh With 20 x 4.0 Tires and Full Suspension

52V 40Ah 2080Wh · 20 x 4.0 · 75 mi · 90 Nm · dual motors · hydraulic discs · full suspension

2080Wh of Battery and Hydraulics Under One Long Bench SeatTwo Packs Two Motors and One Ride

Two hub motors, two 20Ah packs for 52V 40Ah and 2080Wh, 20 x 4.0 fat tires, an inverted fork with twin rear coil shocks, hydraulic disc brakes and a 90 Nm torque figure. It is a moped-shaped off-road machine with mirrors, a bench seat, a USB port and a listed 75 miles of range, and it is listed at 7 speeds. Nothing else in this range ships with a pair of mirrors, and that detail tells you what the bike is for: road speed on an off-road chassis.

Two batteries is the number that separates this bike from everything else in the range. A 2080Wh pack is roughly twice the capacity of the fat-tire bikes here, and it is carried as two cases on the frame rather than one box, which is why the spine looks as deep as it does. That is what a 75-mile claim is built on, and it is also why the bike weighs what it does. What it costs is weight, and this is not a bike you lift onto a roof rack alone.

The mirrors are the other tell. Nothing else in this collection ships with a pair, and their presence says what the bike is for: road speed on an off-road chassis, with a rider who expects to look behind without turning their head. Add the grille headlight and the bench and it is closer to a small motorcycle than to a bicycle with a motor.

At a Glance

• Two Hub Motors — Front and rear driven wheels
• 2080Wh Total — 52V 40Ah across two 20Ah packs
• 75 Miles Listed — Range across the assist modes
• 90 Nm Torque — Brand figure for the pair
• 20 x 4.0 Tires — Fat casing for dirt, sand and snow
• Full Suspension — Inverted fork, twin rear coil shocks
• Hydraulic Discs — Front and rear, red calipers
• Bench Seat — Moped length, two-up capable
• Bar End Mirrors — A pair, fitted as shipped
• USB Charging — Port on the bar for a phone
• 7-Speed — Geared to pedal a flat pack home
• Matte Black — With white graphics on the cases

Moped Spine and Two Battery Cases

The frame is steel in a tall moped spine, with a bench seat running back over the rear wheel and two battery cases bolted along the down tube. It is a heavy frame built to hold 2080Wh of cells and two motors, and the standover is low at the front where you step in.

Splitting the pack into two 20Ah cases is a practical decision as much as a styling one. Each case is light enough to carry indoors on its own, they can be charged separately, and a failure in one still leaves half the capacity rather than none. Both are key-locked to the frame.

Suspension is at both ends: an inverted double-crown fork up front and a pair of coil shocks at the rear with red springs. On 20-inch wheels with four inches of tire that is a lot of travel, and it is what makes a bike this heavy tolerable on a washboard track.

• Frame: steel moped spine
• Battery: two 20Ah cases on the down tube
• Fork: inverted, double crown
• Rear: twin coil shocks, red springs
• Brakes: hydraulic disc, front and rear
• Extras: mirrors, USB port, grille headlight

Fitted as shipped: front and rear fenders, a pair of bar-end mirrors, a grille headlight, a tail light, a USB charging port and a kickstand. The brake levers are hydraulic with motor cut-off switches, and the bars are wide with a moped bend.

Two Motors and 2080Wh

Each wheel carries a hub motor, so the bike is all-wheel drive in the same sense a truck is four-wheel drive. The pair is rated at 90 Nm combined on the brand's figures, and on loose ground that is what lets a heavy bike pull away from a stop instead of digging the rear tire in. Two sealed controllers run the hubs, and the arrangement means the front wheel is being driven as well as steered, which is the part a new rider has to get used to on a loose surface.

The pack is 52V 40Ah, 2080Wh, split across two cases. A charge from empty is a long evening on the supplied charger, and because the cases come off separately you can charge one while riding on the other. Both are key-locked and both have their own port, so a flat you cannot reach a socket from is a case you carry inside rather than a bike you leave on the street. In winter, take both indoors.

Range is listed at 75 miles, and with two motors and this much capacity that figure is at least arithmetically possible in a way it is not on a 600Wh bike. It still assumes pedal assist and a steady hand: both hubs on soft ground in cold weather will land well below it, so plan a long day around fifty.

Who It Fits and How It Rides

The bench does not adjust much, so the range is narrower than the frame suggests: about 5 ft 4 in to 6 ft 3 in. Taller riders will feel their knees come up and shorter riders will find the low step-in easier than a saddle-and-post bike, so sit on one before ordering.

On gravel and dirt it is stable and the twin shocks keep the bench level, and two driven wheels find grip a single hub would not. On pavement it is quick, noisy and slow to steer. The mirrors are useful at that speed.

• Long fire-road days where 2080Wh matters
• Campgrounds and two-up short trips
• Off-road use where both wheels need drive
• Not for tight singletrack, stairs or public-road use without checking state law

What's in the Box

Before the first ride: fit the front wheel and check both axles, set the fork and shock preload, bed the hydraulic brakes in with ten firm stops, then charge both packs. Get help lifting it out of the carton, and check both battery case locks before the first long ride.

Color and Finish

Matte black covers the frame, fork, fenders and both battery cases, with white graphics on the case sides and red springs and calipers as the only colour. It is a deliberately severe look, and the white lettering is what makes the battery capacity read from across a car park.

Touch-up paint in matte black is available on request, and matte is harder to spot-repair than gloss. The case edges and the chainstay take the first marks.

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. Two 20Ah cases take most of a night between them, so start the evening before a long ride rather than the morning of it.

Check tire pressure before every ride at 15 to 20 psi on pavement and 8 to 12 psi on dirt, and check both axles and the shock preload after the first 50 miles. Check the hydraulic pads monthly, and check the spoke tension on both wheels after the first 20 rides, because two hub motors load both wheels harder than one does.

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-5592275 · moped style dual motor off-road e-bike · two brushless hubs, front and rear, 90 Nm combined, brand figures · 52V 40Ah split across two 20Ah key-locked cases, 2080Wh total · 75 miles listed range · 7-speed drivetrain · hydraulic disc brakes front and rear with red calipers and motor cut-off · inverted double-crown fork with twin rear coil shocks · 20 x 4.0 knobby tires on black rims · bench seat, two-up length · pair of bar-end mirrors · grille headlight and tail light · USB charging port · steel moped frame in matte black with white graphics · two sealed controllers · both packs separately chargeable and key-locked · mirrors, USB port and grille headlight fitted · built for fire roads, long off-road days and campgrounds rather than tight singletrack or public roads