Surface 604 500W - 604 Boar Hunter Fat Tire Electric Bike

Surface 604SKU: EB-604BOAR-BLK

FREE SHIPPING to Continental US
FREE Poplock bicycle lock ($84.95 value)

Battery: 48v/20AH
Frame Size: S/M
Sale price$3,099


The electric fat tire bike has been purposely built to travel over rough grounds. Powered by the Bafang 500 watt geared rear hub motor, the bike can run at lower RPM’s without overheating. The 48 volt Samsung lithium-ion battery, which powers the bike to cover 50 miles distance when fully charged. The torque sensors determine the hard you are pedaling and accordingly match power output to match.

  • Hydraulic Disc Brakes: The brakes offer precise braking power that is perfect for riding down the slope. Without putting too much pressure on the bike, you can bring it to an immediate halt.

  • Fat Tire Bike: The wide contact surface of the tires makes them perfect for traction and provides a better grip in the most challenging terrains.

  • Lithium-ion Battery: The Samsung lithium-ion battery offers excellent performance, and when fully charged (takes about 6 hours), the bike can cover a distance of about 50 miles.

  • Lightweight Frame: The bike is made of lightweight aluminum, and the low top tubes make it perfect for mounting and dismounting.

The Surface 500W - 604 Boar Fat Tire Electric Bike has been engineered to ride on rugged terrains and deliver robust performance. The bike utilizes the parts from some of the leading companies like Bafang, Kenda, FSA, and Tektro. The Bafang 500W hub motor delivers superior torque as it can run at lower RPM’s without the problem of overheating.

The 48 volt Samsung lithium-ion battery of the bike, when fully charged, can power the bike to cover approx. 50 miles distance (varies for different modes). The battery takes around 6 hours to get fully charged, which is the ideal time for any highly-efficient battery. One of the smartest features of the bike includes a torque-sensing battery management system that helps reduce the overall power consumption.

The battery casing has been fitted into the downtube of the frame, which improves the bikes' balance and stability.

The torque sensors have been included in the system for proper management of power. The lithium-ion batteries provide an extended battery range as the system determines how much pressure is being put by the rider on the pedal and thus provides it with proportionate power. The power output of the bike is matched to the strength applied by the rider.

You also save a lot of energy with the e-bike as the sensors turn off the bike when the rider is not pedaling the bike. With better energy-saving, you increase the battery life.

You can amp up the skill of the bike by upgrading it with custom fenders that can save the rider from the splash of mud and dirt.


  • SKU/Model No.: EB-S604BOAR

  • Drive System: Bafang fat bike specific geared hub motor

  • Motor: 350W Bafang geared rear hub (1000w peak)

  • Torque: 80Nm

  • Top Battery: 48V 13.3Ah / 478Wh Samsung lithium-ion

  • Charge Time: 6 hours for a full charge from empty

  • Battery Life: Up to 50 miles depending on model

  • Weight Including Battery: 57lbs

  • Rear Derailleur: SRAM X5 10-speed

  • Cassette: SRAM PowerGlide™ 1070, 11-36T

  • Shift Levers: SRAM X5 trigger shift

  • Brakes: TEKTRO Auriga hydraulic disc, post mount, 160mm rotor

  • Fork: Proprietary design, tapered steerer, 150mm x 15mm thru-axle

  • Frame Material: 6061 aluminum alloy

  • Pedals: Wellgo platform

  • Handlebar: Promax aluminum, 35mm rise, 670mm wide, 9-degree sweep, 31.8mm

  • Tires: 26″ x 4″ Kenda Juggernaut (standard); 26″ x 4.5″ Kenda Juggernaut Sport (upgrade option)

  • Rims: 26″ x 80mm single-wall aluminum

  • Sizes Available: Small-Medium: 17.5″ (rider height 5’2” to 5’7”) & Medium-Large: 19″ (rider height 5’8” to 6’6”)

  • Weight Capacity: 285 lbs

Recently viewed

Customer Reviews

Based on 1 review
Great First Ebike/Fatbike for the price

For what yo get right out of the box for just under 3000 bucks, there is absolutely no buyers remorse. I can easily lift this bike in and out of the truck bed of an F150 height. I certainly reccomend buying the fenders that go with it. As for any other upgrades to add to is up to you. Maybe an extra set of tires and tubes becase you'll need them sooner than later if you really get after it on this thing. I ride it pretty hard and use a lot of its power and I get 30 miles out of it with some to spare. Both Surface and Bike Berry delivery high quality customer sevice. I give the bike four stars because it is not perfect and each model year has improved. My reccomendation is drop the camo paint job because it flakes off. Give it a real paint job in cerakote. The bike did show up with a broken reflector and faulty headlight. Customer service quickly took care of this. If you are 5 Foot 6 inches tall you can ride the size M/L frame with no issue. I originaaly ordered it size S/M. After placing the order I was informed that the small medium size was out of stock till April. I was asked if I would like to wait, try size medium large or another bike. I sized up and have no regrets. My next ebike will be a fat one that has duel hub motors.

You may also like