HKM-9811795 Fat Tire E-Bike Carries a 750W Hub and a 48V 25Ah 1200Wh Pack on 26 x 4.0 Tires for 40 to 60 Miles

750W · 48V 25Ah 1200Wh · 26 x 4.0 · 60 mi · olive green · 180 mm mechanical discs · 330 lb

A 1200Wh Pack on the Down Tube and Mechanical Discs That BiteOlive Paint and Miles of Dust Ahead

A 750W geared rear hub, a 48V 25Ah 1200Wh pack on the downtube, 26 x 4.0 fat tires, a suspension fork and 180 mm mechanical disc brakes, on an olive green frame with a rear rack that has a wooden deck. It is listed at 40 to 60 miles, and the 1200Wh pack is what makes that number realistic rather than optimistic: most fat bikes in this price band carry two-thirds of that capacity, and the difference shows up on the second day of a trip rather than the first.

The frame is the older shape rather than the current step-over wedge, and that is a feature for the riders this bike suits: a long top tube, a slack seat angle and a battery you can see. The pack sits in a case on the downtube instead of disappearing into the frame, which makes it easy to check the charge level at a glance and easy to lift off for charging indoors. The rack deck is the other retro detail, and it is the one that gets used daily.

What the 1200Wh buys is a day rather than an hour. On a fat tire bike the motor works harder than on a commuter, so capacity matters more than watts: 40 miles is the low end with the throttle and soft ground, 60 is pedal assist on a hard surface, and both are numbers a rider can plan a trip around.

At a Glance

• 750W Geared Hub — Rear hub with throttle and pedal assist
• 1200Wh Pack — 48V 25Ah on the downtube, key-locked
• 40 to 60 Miles — Throttle at one end, assist at the other
• 26 x 4.0 Tires — Fat casing for gravel, sand and snow
• Olive Green Frame — With a wooden deck on the rear rack
• 180 mm Mechanical Discs — Front and rear, cable actuated
• Suspension Fork — Coil sprung, rigid rear triangle
• External Battery Case — Visible charge level, lifts off to charge
• Rear Rack — With a wooden deck for a crate or a bag
• 330 lb Load — 150 kg rating for rider and cargo
• LED Headlight — Round lamp on the fork crown
• LCD Display — Speed, battery, assist and trip

Frame, Rack and Fat Tires

The frame is a long, slack, step-over shape in olive green, closer to a beach cruiser than to a modern trail bike. That geometry is comfortable at 15 mph and vague at 25, which is the right compromise for a bike that spends its life on gravel and sand rather than on a fast road descent.

The battery rides in a case on the downtube rather than inside it. It is less elegant and more practical: you can see the charge indicator without turning the bike on, and the pack lifts off in one motion when you want to charge it in a hallway rather than a garage.

Up front there is a coil-sprung suspension fork and behind the saddle a rigid triangle carrying a rack with a wooden deck. The deck is the detail that sells this bike to anyone who has tried to strap a crate to bare aluminium tubes.

• Frame: step-over, olive green
• Battery: external case on the downtube
• Fork: coil-sprung suspension
• Rear: rigid, rack with a wooden deck
• Brakes: mechanical disc, 180 mm rotors
• Tires: 26 x 4.0 fat casing

Fitted as shipped: front and rear fenders, the rear rack with its deck, a round LED headlight on the fork crown, a kickstand and the battery keys. The tires are 26 x 4.0, which is what makes a beach and a snowed-in lane usable rather than an expedition.

Motor, Battery and Range

The motor is a 750W geared rear hub with a throttle and pedal assist. It is not the most powerful motor in this class and it does not need to be: on a fat tire the limit is usually traction rather than torque, and 750W with a geared hub is enough to keep a loaded bike moving on gravel without spinning the wheel. A geared hub also freewheels, so the bike coasts like a bicycle when the assist is off and the motor is not dragging the wheel behind you on a descent.

The pack is 48V 25Ah, 1200Wh, in a key-locked case on the downtube. A full charge takes six to eight hours on the supplied charger, and the case is the part of this bike that gets carried indoors most often, because a 1200Wh pack left in a freezing garage loses capacity faster than one kept at room temperature. The case has its own charge port, so the pack can be charged on or off the bike, and the key lock is on the case rather than the frame.

Range is listed at 40 to 60 miles, and the low figure is the one to plan around: throttle riding on sand, in cold weather, with a loaded rack, lands near 40. Pedal assist on a hard rail trail is where the 60 comes from, and it is not a marketing number on a 1200Wh pack. On a fat tire the low figure is the honest one for a loaded day.

Who It Fits and How It Rides

One frame size covers riders from about 5 ft 5 in to 6 ft 4 in, and the long top tube means shorter riders reach further than they expect. Sit on one before ordering if you are under 5 ft 7 in, because the reach is the number that decides whether a cruiser frame is comfortable or tiresome.

On gravel and packed sand it tracks straight and the fat casing floats; on pavement it hums and steers slowly, and the mechanical discs are adequate rather than sharp. The rack with its deck is the most useful part of the bike, and it is the reason the geometry is long.

• Beach towns, farm tracks and snowed-in lanes
• Camping, hunting and fishing trips with a crate
• Grocery runs with a loaded rear rack
• Not for tight singletrack or fast group rides on pavement

What's in the Box

Before the first ride: fit the front wheel and check the axle, set the fork preload for your weight, bed the brake pads in with ten firm stops, and check the rack bolts before you load the deck. Charge the pack fully, and keep the battery case indoors over winter.

Color and Finish

Olive green covers the frame and fork, with a black cockpit, black rims, black fenders and a wooden rack deck that has been left its natural colour. It is a retro palette that looks deliberate on a beach and slightly odd in a city, which tells you where the bike was designed to be used.

Touch-up paint in the matching green is available on request. The wear points are the chainstay under the chain, the rack deck and the frame where the fender stays bolt on, and the deck is the part that will show a crate's corners first.

Battery Care and Maintenance

Charge the pack between 20 and 90 percent for daily use and take it to full about once a month so the management system can balance the cells. A 1200Wh case takes most of a night, so start it in the evening, and bring it indoors rather than leaving it in a cold garage.

Check tire pressure before every ride: 18 to 20 psi on pavement, 10 to 12 psi on sand and snow. Check the rack bolts and both axles after the first 50 miles, and check the mechanical brake pads monthly, since cable discs wear faster than hydraulic ones under a load. Check the spoke tension on the rear wheel after the first 20 rides, since a hub motor loads that wheel harder than a bicycle hub does, and wipe the fork stanchions after a wet ride.

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-9811795 · 26 in fat tire electric bike · 750W geared rear hub · 48V 25Ah 1200Wh battery in a key-locked downtube case · 40 to 60 miles listed range · 28 mph as configured · Shimano gearing · 180 mm mechanical disc brakes front and rear · coil-sprung suspension fork with a rigid rear triangle · 26 x 4.0 fat tires on black rims · LCD display · throttle and pedal assist · round LED headlight on the fork crown · front and rear fenders · rear rack with a wooden deck · 330 lb load rating · olive green frame · built for beach towns, farm tracks and camping trips rather than tight singletrack · geared hub that freewheels when the assist is off · battery case with its own charge port and key lock · six to eight hour charge · ships with charger, two battery keys, tool kit and manual · fenders and rack fitted at the factory