2021 Surface 604 - QUAD Electric Bike
Purpose built for top speed 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.
Quad incredibly smooth torque sensor knows how hard you’re pedalling down to the microsecond and matches it with a proportionate 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.
· Powerful 500W Motor to tackle steep hills
· Large capacity 48V14Ah Samsung Lithium Ion battery for long range of 72 km (45mi) per charge
· Upgrade available from 14Ah 18650mah cells to 20Ah 21700mah cells for increased range of 105 km (65mi) per charge
· Fully integrated, bright BUCHEL LED front light
· Aggressive trail Maxxis Rekon+ Skinwall 27.5" x 2.8" tires
· SR Suntour XCM front suspension
· Features easy to use thumb throttle
· Whisper smooth intelligent cadence sensor
· Comes in Small/Med and Med/Large for riders of different height