Surface 604 Electric: Shred Electric Bike - 2021

Surface 604 Electric: Shred Electric Mountain Bike - 2021

The new Surface604 Shred electric mountain bike comes fully loaded with every feature needed to make riding effortless, a bestseller at Bike Attack Electric in Santa Monica.

 

FEATURES

Powerful 500w Motor, 2 Options of Batteries (14ah and 21ah)

The Shred is outfitted with a high-speed Bafang electric mountain bike specific 500 W hub motor with a throttle that is extremely powerful (peaks at 750W).

UP TO 45 MILE BATTERY RANGE IN PEDAL ASSIST MODE - DEPENDING ON MANY VARIABLES, LIKE RIDERS WEIGHT, TERRAIN, LEVEL ASSIST MODE ETC.

285 LBS WEIGHT CAPACITY

 

 

KEY TECH SPECS

TEKTRO DORADO HYDRAULIC DISC BRAKES

SRAM X5 9-SPEED DRIVETRAIN

TORQUE SENSOR SYSTEM

LARGE-FIXED-BACKLIT LED SCREEN

POWERFUL AXENDO LED HEADLIGHT

 

Extra Wide Tires

A major feature that separates the Shred from the pack of other eMTBs on the market, it the CST Patrol 27.5" x 2.6" plus size tires that the bike comes stock with. With a larger rubber patch contacting the ground, the plus size tires add traction and mute small bumps, giving the rider added confidence, superior performance and a more comfortable ride.

 

SR SUNTOUR XCM SUSPENSION FORK (120MM TRAVEL)

THUMB-PUSH ACTIVATED THROTTLE

KICKSTAND

ADJUSTABLE STEM

 

 

Resized Battery

 

 

 

▪ Semi-embedded 440mm battery that now fits all models. 

▪ 48V14ah (672wh) battery and option of 21ah battery (+$300)

▪ Down tube - reinforced and extended by 30mm.

▪ Upper tube - restyled and reinforced, then extended by 15mm.

 

New Lengths

 

 

 

▪ Head tubes come in two lengths 175mm SM and 186mm ML. 

▪ Taller riders on ML size bike get more comfortable, upright riding position. 

▪ Consistent seat tube size 30.4 for all models.

 

New Controller

 

▪ Repositioned to better protect against elements.

▪ Powerful and efficient 12 MOSFET 25AH. 

▪ Physical length is down from 180mm to 160mm.

▪ Fits across all models Colt, Rook, Shred and Boar.

▪ Easier-to-access controller for servicing and replacing.

▪ Extended downtube provides more space for wires.

 

Other Improvements

 

 

 

▪ Custom designed dropout to accommodate TMM style torque sensor.

▪ Large 180mm rotors front/rear to provide better braking and control.

▪ 27.5+ front fork giving more clearance between fork brace and tire to install front fender.

▪ Better plug and play wire management.

▪ Color LCD display with built in micro USB jack.

 

SPECIFICATIONS

MOTOR

eMTB specific 500W (peaks at 750W) Bafang geared hub motor

DRIVE MODE

Torque sensing pedal assist with a throttle

TORQUE

65Nm

THROTTLE

Thumb push activated throttle

CONTROLLER

12 Mos 48V 500W 25A

BATTERY

48V 14Ah / 672Wh lithium-ion 18650 cells and 21Ah option

BATTERY RANGE

Up to 45mi (70km) with a 48V14 4Ah battery

BATTERY CHARGE TIME

6 hours for a full charge from empty

 

 

DISPLAY TYPE

Large fixed, backlit LCD display

FORK

SR Suntour XCM 120mm, 9mm QR axle

DERAILLEUR

SRAM X5 9-speed

CASSETTE

SRAM 11-36T

SHIFT LEVERS

SRAM X5 trigger shift

BRAKES

Tektro Dorado hydraulic disc, 180mm rotor with motor inhibitors

CRANK SET

Samox 38T front sprocket, 170mm crank arms

BOTTOM BRACKET

Bafang Torque sensor, 73mm

FRAME TYPE

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

FRAME MATERIAL

6061 aluminum alloy

STEM

Ergotech 6 adjustable

HEAD SET

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

HANDLEBAR

Promax aluminum, 700mm wide, 6° sweep, 31.8mm clamp diameter

GRIPS

Full length 145mm, black colour, with locking rings

PEDALS

Wellgo platform, with die casting body

CHAIN

KMC 9-speed

SEAT POST DIAMETER

27.2mm

TIRES

27.5″ x 2.6″ CST Patrol

RIMS

Aluminum Alloy Double Wall Rim, 27.5″x13Gx36H

FRONT HUBS

1-piece forged CNC with 2 sealed bearings, Cro-Mo axle and Alloy QR

KICKSTAND

Heavy duty aluminum

STANDOVER HEIGHT

Small-Medium: 28.5” (730mm)

Medium-Large: 30” (760mm)

NET WEIGHT (INCLUDING BATTERY)

55lbs

WEIGHT CAPACITY

285lbs (130kg)

OPTIONAL UPGRADE FEATURES

SR Suntour NCX suspension seat post, Rear Rack

 

*Prices, specs and specifications can change at any time without prior notice.

 

SIZE GUIDE

A rider's height is best determined for size with S/M (17.5" frame) optimal for people 5'2" to 5'7" and M/L (19" Frame) ideal for those 5'8" to 6'6".

 

Weight capacity for both sizes is 285lbs (130kg)

 

 

 

GEOMETRY

 

 

 

WATCH WHY ELECTRIC BIKE REVIEW LOVES THE SHRED

 

"The Shred is definitely one of my favorite value products for so far."