SURFACE 604 - BOAR Camo Fat Bike 2021


Brand Surface604

The Boar comes equipped with a fat bike specific 500W motor that is extremely powerful (peaks at 750W). With a torque sensor and throttle on demand, the Boar is well suited to carry heavy loads and is often referred to as the pickup truck of bikes.


We designed the Boar with the avid outdoorsman in mind and thus knew that partnering with Kryptek, and industry leader in high-performance technical outdoor adventure apparel design, was a great fit!

As such, the Boar features the Kryptek Highland Camo that is specially designed for geographical regions and elevations that are varied and increases stealth in mixed terrain.

The Boar comes standard with lots of extra features that were added to make the riding experience more comfortable.


STANDOVER HEIGHT - Small-Medium: 28.5” (730mm)

                                        Medium-Large: 30” (760mm)

SIZE REFERENCE - S/M 17.5" Frame, for riders 5'2"-5'7"

                                M/L 19.0" Frame, for riders 5'8"-6'6"


                                     48V20Ah (Extended Range + $400)



MOTOR - BAFANG MAX High torque 500W (peaks at 750W) geared hub motor

DRIVE MODE - Torque Sensing Pedal Assist with a Throttle

THROTTLE - Thumb push activated throttle             TORQUE - 80Nm

CONTROLLER - SURFACE604 Designed 12 MOS 48V 500W 25Ah, Smart

BATTERY - Included: 48V 14Ah / 672Wh Samsung lithium-ion 18650 cells

BATTERY - Upgrade option: 48V 20Ah / 960Wh Samsung lithium-ion 21700 cells

BATTERY RANGE 1 - Up to 45mi (72km) with a 48V14Ah battery

BATTERY RANGE 2 - Up to 65mi (105km) with a 48V20Ah battery

BATTERY CHARGE TIME - 6 hours for a full charge from empty

DISPLAY TYPE - Surface604 Color LCD Display with Micro USB Jack Bigger display: 3.5" for 2021 vs. 3.2" for 2020

FORK - Proprietary design, tapered steerer, 150mm x 15mm thru-axle with rack bosses


CASSETTE - SRAM 9 speed, 12-34T

SHIFT LEVERS - SRAM X5 trigger shift

BRAKES - Tektro Auriga hydraulic disc, post mount, 180mm rotor

CRANK SET - Samox 36T front sprocket, 170mm crank arms

BOTTOM BRACKET - Samox integrated, sealed cartridge, 100mm wide

FRAME TYPE - Tapered headtube, custom reinforced battery mounts, internal cable routing, post mount brakes

FRAME MATERIAL - 6061 aluminum alloy

STEM - Included: UNO ONIT 35 degrees 90mm S/M 110mm M/L 

STEM - Upgrade option: Satori Up2 adjustable


HEAD SET - Samox tapered with sealed bearings 1 1/8″- 1 1/2″

HANDLEBAR - Promax aluminum, 670mm wide, 9° sweep, 35mm rise, 31.8mm clamp diameter

GRIPS - Full length 122mm, black color

PEDALS - Wellgo platform with die casting body

CHAIN - KMC 9-speed


TIRES - 26″ x 4.5″ Kenda Juggernaut SportRIMS - 26″ x 100mm single wall aluminum with cutouts

FRONT HUBS - 150mm x 15mm thru-axle sealed bearing

KICKSTAND - Heavy duty aluminum

NET WEIGHT (INCLUDING BATTERY) - 27.8KG/61lbs(14AH), 29KG/64lbs (20AH)

BATTERY WEIGHT - 14AH battery 3.45KG/7.5lbs, 20AH battery 4.65KG/10lbs

WEIGHT CAPACITY - 130kg/285lbs

BUILT-IN FEATURES - Racks (front and rear) with weight capacity of 50lbs, fenders (front and rear)

OPTIONAL UPGRADE FEATURES - SR Suntour NCX suspension seat post