Author: ElectricBikeReview.com via YouTube
https://electricbikereview.com/surface-604/rook/ The 2021 Surface 604 Rook is a feature-complete and approachable step-through hybrid electric bike available in two frame sizes and two colors. The Rook comes standard with an integrated rear rack, fenders, and lights that run off of the main battery pack. The rear light activates when braking, the bike has two USB charging ports, and there’s an optional battery size upgrade! A rare combination of a torque sensing with a hub motor delivers a smooth and responsive riding experience. The bike also comes with a trigger throttle, so you can relax or add power to climb hills or catch up to friends. Upright comfort-oriented geometry with a quality adjustable angle stem, wider swept-back handlebar, ergonomic grips, adjustable suspension fork, and high volume 2.4" tires. Excellent stopping power thanks to Tektro Auriga hydraulic disc brakes with 180mm rotors and motor inhibitors. The bike will ship with a SRAM X5 or Shimano Alivio groupset that are known for reliability and crisp shifting. The 9-speed cassette offers smaller steps between gears than most entry-level ebikes which provides a more comfortable pedal experience. Larger color display now also includes an integrated full sized USB charger in the base, tires are moped rated and include reflective sidewall stripes for safety, the battery charge port is next to the right crank arm which could make it vulnerable but the kickstand is far back and won’t create pedal lock. No slap guard on the right chainstay which leaves the paint vulnerable to scratches when going over bumps. Limited 11-32 tooth cassette vs. 34 or 42 on some comparable models.
0:00 Introduction
0:47 Price, battery options, drive modes, motor spec
1:25 Geometry and body position, riser stem
2:18 Trigger shifters and brake details
3:05 Total weight, rear rack details, tires
6:24 Adjustable angle stem, maximum allowable weight
6:55 Rims and spokes, 13 gauge for strength
7:21 Battery charger details, 2 USB charging ports
8:02 Battery mounting, 20ah option size differences
8:59 Charge port location, key lock location
9:30 Kickstand position and 40mm interface
10:08 Display panel and buttons overview
12:32 Brake light activation, settings menu
14:10 Company name background, off-road heritage
14:51 Hub spacing and axle attachment details
15:34 Lights test, headlight beam strength 60 LUX
16:20 Ride test begins
17:09 Drivetrain and motor closeups
20:46 Suspension fork adjustment details
21:27 Conclusion and website resources