Surface 604: Quad 20mph
Surface 604: Quad 20mph
Surface 604 Electric: Quad - Electric Mountain Bike
POWERFUL 500W MOTOR
Brand new at Bike Attack Electric. An electric mountain bike with 27.5" tires build like a dirt jumper for top speeds with a 500W 48V electric motor. Feel the surge of quiet, consistent power distribution at higher speeds - vibration-free.
Geared for performance - we paired all that power with an industry-leading 12mosfet 25A controller, so Quad delivers unmatched torque and speed.
Watch out for other riders as you zip pass them.
WHISPER SMOOTH TORQUE SENSING PEDAL ASSIST
Because an electric bike is only as good as it’s power distribution.
Quad incredibly smooth torque sensor knows how hard you’re pedalling down to the microsecond and matches it with aproportionate power.
Gone are the days of simple cadence sensors!
Custom drop out design delivers whisper smooth torque sensor sensation at any assist level.
In fact, you’ll swear it’s as so smooth as a mid-drive motor.
TIRES WITH STYLE & TOUGHNESS
Impressive aggressive trail capabilities, thanks to its stock Maxxis Rekon+ Skinwall 27.5" x 2.8" 35PSI plus size tires with 3C and EXO casing.
That larger contact patch means more grip, less feedback from small bumps and greater comfort.
Other eMTBs are simply not this sure-footed.
eMTB Specific 500W (Peaks At 750W) Bafang Geared Hub Brushless Motor
UPGRADED MOTOR WIRE HARNESS
30Ah, can handle up to 120C current
Drop Out Torque Sensing Pedal Assist with a Throttle
Thumb Push Activated Throttle
SURFACE604 Designed 12 MOS 48V 500W 25Ah, Smart
20mph (32kmh)*, Comes as Class 2
(Unlocked) 30mph (48kmh), as Class 3
Included: 48V 14Ah / 672Wh
Samsung lithium-ion 18650 cells
Upgrade option: 48V 20Ah / 960Wh
Samsung lithium-ion 21700 cells
Up to 45mi (72km) with a 48V14Ah Battery
Up to 65mi (105km) with a 48V20Ah Battery
BATTERY CHARGE TIME
3-4 Hours for a Full Charge from Empty
DISPLAY TYPE (NEW)
SURFACE604 Color LCD Display with Micro USB Jack
Bigger display: 3.5" for 2021 vs. 3.2" for 2020
Büchel Headlight, Pre-Wired To Connect Rear Stop Light
FORK - UPGRADED SUSPENSION
SR SUNTOUR XCM 32. 29er, 100mm with Axle Thru Hub
SRAM X5 9-Speed 1-Piece forged CNC with 2 sealed bearings
SRAM X5 Trigger Shift
TEKTRO Dorado eMTB Specific Hydraulic Disc, Quad Piston, 180mm Rotor with Motor Inhibitors
SAMOX 38T Front Sprocket, 170mm Crank Arms
180mm Front/Rear x 2.34mm thick
Samox sealed bottom bracket
Tapered Headtube, Custom Reinforced Battery Mounts,
Internal Cable Routing, Post Mount Brakes
6061 Aluminum Alloy
eMTB specific Ergotec Bass 31.8mm
SAMOX Tapered with Sealed Bearings 1 1/8″- 1 1/2″
Promax Aluminum, 60mm Rise With 9° Backsweep and 720mm Wide
Full Length 145mm, Brown Color
Wellgo Platform, With Die Casting Body, Gold Color
KMC 9-Speed, Gold Color
SEAT POST DIAMETER
Maxxis Rekon+ 27.5” x 2.8” Skinwall tires (3C, Exo casing tech)
Aluminum Alloy Double Wall Rim, 27.5″x13Gx36H
1-Piece Forged CNC With 2 Sealed Bearings, Cro-Mo Axle And Alloy QR
Heavy duty aluminum
Small-Medium: 28.5” (724mm)
Medium-Large: 30” (762mm)
RECOMMENDED RIDER HEIGHT
Frame Sizes: S/M - 17.5", M/L - 19.5"
For Riders: S/M 5’2”-5’7”, M/L 5’8” - 8’8”
NET WEIGHT (INCLUDING BATTERY)
14AH battery 3.45KG/7.5lbs
20AH battery 4.65KG/10lbs
Adjustable Kickstand, Water Bottle Bosses
Matching Accents Throughout I.E. Seat, Grips, Tires, Gold Chain, Pedals
OPTIONAL UPGRADE FEATURES
21700 Samsung Cells 48V20Ah Battery, Chain Guide,
NCX Suspension Seat Post, Metal Fenders, Rear Rack,
Rear Led Light, Rockshox Judy TK 100mm Travel.
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