Surface 604 – Quad


Classic Design Features – Potent Performance

  • 500 watt geared motor
  • Top speed – 30 mph
  • 5 levels of pedal assist
  • 2 amp smart charger
  • Range: up to 45 miles*


Every bike from Surface 604 has impressed us through the years and the new Quad is yet another. It takes the value and performance offerings of the Shred emtn. bike and raises the bar just a bit more.

The Quad gives a nod to classic mtn. bike frame design by providing a frame that is both rock solid and visually distinctive. This, along with a suite of eye-catching bike bling, makes this a real head turner of a ride. Lest you think the Quad is all show and less go, I assure you that’s not the case. The 500 watt motor, 48 volt battery, and 25 amp controller deliver impressive power via torque sensor-activated pedal assist and/or manual throttle control. Hydraulic disc brakes, SRAM 9-speed gearing, and a Suntour 32mm Boost+ front suspension fork round out the component package. It also provides an impressive 28 mph top speed for those times when you just gotta rip!

The Quad is qualified to tackle any kind of technical single track riding that you desire. I would take it anywhere my $5k+ bike will go. If you’re looking for a hardtail emtn. bike that has great power, excellent handling, and a very reasonable price, the Surface 604 Quad could be the bike for you.

Power and Range

  • 500 watt Bafang geared rear motor
  • 5 levels of torque sensing pedal assist and manual throttle
  • Top speed – 20 mph (unlocked to 28mph)
  • Samsung 48V 14Ah removable, lockable lithium ion battery (with option to upgrade to 20Ah)
  • 2 amp smart charger (4-6 hour charge time)
  • Range 75 miles*

Gearing and Stopping

  • SRam X-5  9-speed
  • Tektro Dorado hydraulic disc brakes front & rear

Comfort & Appearance

  • 6061 Aluminum frame
  • Suntour XCM 32 Boost front suspension fork w/thru axle
  • Maxxis Rekon+  27.5 x 2.8” tires
  • Selle Royal gel comfort saddle
  • Brown leatherette grips
  • Headlight
  • Side kickstand
  • Wellgo gold anodized alloy pedals
  • Available in S/M and M/L frame sizes


  • Tektro Dorado hydraulic disc brakes front & rear

Weight & Warranty

  • 61 lbs.
  • Warranty 1 year

 (financing available)

*Range limitations depend on rider weight, riding style, terrain.