Surface 604 Rook - Step-through Cruiser Electric Bike | Electric Bike Revolution

Surface 604 Rook - Step-through Cruiser Electric Bike

Surface 604: Electric Bike

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Surface 604 Rook - Step-through Cruiser Electric Bike

1. Comfortable Cruiser with

The Rook e-assist bicycles have been designed with comfort in mind. We’ve combined the power of a 500w+ motor with a light, versatile frame to create a bike that is well-equipped for riders looking for some extra momentum to get them around quickly and easily.

The bike features an adjustable stem that can be fine-tuned on the fly for individual riding styles without the need for tools.

2. Built-in Rear Rack

The heavy-duty built-in rear rack easily holds all types of pannier bags with a max load of 100lbs (45kg)

3. Fenders and Chain guard

The Rook is built for the year-round commuter, and comes direct from the factory with front and rear fenders and a chain guard, keeping water, mud, and grease off clothes and ensuring riders arrive fresh and mess-free.

4. Suspension Fork

All roads are not created equal, and the Rook includes an SR Suntour XCT Suspension fork, absorbing even the bumpiest conditions for a smooth, easy ride.

5. Torque Sensor and Throttle on Demand

With a torque sensor and throttle on demand, the Rook is great for those traveling longer distances, a variety of grades, and needing a little extra stamina to make it work while still being able to enjoy the ride.

6. Discrete Battery Placement with Power Bank

Unlike other electric assist bikes with bulky batteries taking up space on rear racks, the battery for the Rook placed discreetly in the down tube, also assisting with better weight distribution. As an added bonus, the battery also features a USB plug for charging mobile devices on the go.

7. LED Front and Rear Lights

The powerful front and rear LED lights that feed off the main battery mean never having to worry about charging or replacing batteries at the end of a long day.



Drive System- Bafang rear-mounted gearless direct drive hub

Motor- 500w+ (peaks at 750w)

Battery- 48V 10.4Ah / 500Wh Samsung Lithium Ion

Charge Time- 5 hours for a full charge from empty

Battery Life- Up to 45mi (70km) depending on mode

Weight Including Battery- 55lbs (25kg)

Battery Weight- 9lbs (4kg)

Frame Type- Step-Through

Frame Material- 6061 aluminum alloy

Frame Colors- White, gray

Fork- SR Suntour XCT

Headset / Stem- Adjustable stem

Pedals- Welgo alloy platform

Display Type- Fixed, backlit LCD display

Drive Mode- Torque sensing pedal assist with a throttle

Top Speed- 20mph (32km/h)

Brakes- Tektro Auriga hydraulic disk breaks

Handlebar- 620mm, 15% back sweep, 20mm rise

Grips- Ergonomic rubber with lockers

Saddle- Velo, ergonomic

Seatpost- Aluminum alloy post

Tires- 26" x 2.1″ Kenda Kranium

Features- Rear rack, fenders (front and rear), LED lights (front and rear), chain guard, adjustable stem

Sizes Available- Small-Medium: 17.5″ or Medium-Large: 19″

Frame Size

                                                                      S/M                   M/L

TTH.     Top Tube Length                           57.4 cm             62 cm

HTA.     Head Tube Angle (degrees)             70                     70

HTL.     Head Tube Length                         18.5 cm            18.5 cm

STA.     Seat Tube Angle (degrees)              74                     73

STL.     Seat Tube Length                          43.2 cm            48.3 cm

CSL.     Chainstay Length                          43.1 cm           43.1 cm

WB.      Wheel Base                                 108.9 cm          112.1 cm

Recommended Height:                           Below 5'8"      5'8" and Above 


Order Confirmation:

Immediately after placing an order online, you will receive an email confirming the details of your order.

Should the item purchased be unavailable, not in stock or have a longer than usual lead time, a member of our team will reach out via phone or e-mail to find a probable solution.

Order Shipment:

A tracking number will be emailed as soon as the order is ready for shipping.

If you do not receive tracking information from us within six business days of your order, please follow up with us at

Alaska and Hawaii:

Please note, if you live outside the continental USA please call us or write us to get a free quote, additional charges may apply to your shipment.

Damaged Shipment:

Please inspect the packaging of your item(s) upon arrival and make note of it when signing for delivery. If your item(s) arrived damaged, please send photos to and we will process an exchange for the same item or return.

Cancellations & Refunds:

Order cancellations must be received within 24 hours of placing an order. If your order has shipped, you (the buyer) will also be responsible for the return shipping charges.


***Please check our warranty page for manufacturer specific return policies before reading our general return policy below.***

No returns will be accepted if used or not in original packaging and new condition.

Please contact us first before returning any items. We accept returns if it meets the following requirements:

  • Return must be initiated within 14 days of original order date.
  • Must provide proof of purchase from
  • Must be brand new, never been used
  • Original packaging and all items originally included by the manufacturer (including all manuals, accessories and other included or bonus items).
  • Returns are subject to a 20% restocking fee. 
  • Buyer pays for return shipping.


    If you have any issues with your product, please send an email to our customer support team at and we will assist you in filing a warranty claim with the manufacturer of your electric bike, part, or accessory.

    Please note, if you're simply unhappy with your bike and don't see the manufacturers return policy below or in the product description, please contact us directly and we will help you find a solution.

    Manufacturers warranty and return policy:

    Whether you are a new customer or a returning one; our mission is to not only offer you the best-in-class service but also the best prices online.

    Should you find a lower price from another online-only dealer, we will refund you the difference within 30 days of the purchase date. Tell us which competitor is offering the lower price; we will verify the price and process your refund.

    If our own price is reduced, present us with your original receipt within six months of purchase and we will refund the difference.

    Here are some terms and conditions:

    • The item must be of the same brand and model.
    • The item must be new and factory sealed.
    • Competitors’ prices must be in US dollars and will be adjusted for any fees, taxes or other charges such as environmental handling fees and shipping.

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