Koa Rev 2 Fat Tire Electric Bike - Step Through

$1,399.99 Regular price

Starting at $127/mo with . See if you qualify

Pay 4 interest-free payments of $350 with

From cruising city streets to tackling rugged, off-road trails, Koa Rev 2 is the ultimate electric bike for adding excitement to your everyday. This ebike is powerful: it’s fully equipped with a 500W motor, 48V/500Wh battery, and can propel you up to 28mph with ease. Explore everywhere up to 52 miles per charge, tackle any terrain with 4” fat tires and front suspension, and brake confidently in all kinds of weather with Tektro mechanical disc brakes…Now that’s what we call range. Control freak? We get it. With 6 Pedal Assist levels, convenient push-to-go throttle, and a versatile 7-speed drivetrain, you’ll always be in the driver’s seat. When the day’s winding down, your adventures don’t have to, thanks to integrated front and rear lights that will keep you safe and seen as you ride your trusty ebike into the sunset.

Starting at $127/mo with . See if you qualify

Pay 4 interest-free payments of $350 with

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Koa Rev+ 26” Fat Tire Electric Bike - Step Through | Matte Sage
Koa Rev+ 2 Fat Tire Electric Bike - Step Through
  • Farther range, up to 72 miles per charge
  • Torque sensor
  • Center-mounted color display
  • Fully integrated 720Wh LG21700 battery
  • 750W rear hub motor
  • Tektro hydraulic disc brakes
  • Puncture-protected heavy duty tires
  • Shimano 8-speed drivetrain
Motor & Battery
Keep your e-bike safe with a foldable bike lock
Fortitude Folding Bike Lock With Carrier - 5mm
Color —
The delivery date is estimated based on carrier guidance. Actual delivery time may vary and is not guaranteed by Retrospec or the carrier.
Free Shipping
50 Day Returns

On-road precision. Off-road performance. All-around comfort.

Get to know your ride
Koa Rev 2 26” Fat Tire Electric Bike - Step Through | Matte Graphite


Top assisted speed

Up to 52-Mile Range

High-range Rev ebike

6 Pedal Assist Levels

Propel while pedaling


Planetary geared hub motor


LG Li-ion battery

Tektro Mechanical Disc Brakes

Consistent & confident stopping power

4” Fat Tires

Suitable for any terrain

80mm Travel Suspension Fork

Absorbs impact

UL2849 Certified

Safety tested and approved by a UL accredited lab
Hop On With Ease
Getting on and off your bike has never been easier, thanks to an accessible step through frame shape that also allows for a more comfortable, upright riding position.
Easy Access to Controls
The handlebar-mounted button pod controls everything, from the throttle, to the lights, to walk mode, pedal assistance, and more – all right at your fingertips. 
Center-Mounted B/W Display
The black-and-white LCD screen is large and high-contrast, making it easy to read in the bright sun – at a glance, you can keep track of your bike’s battery level, Pedal Assist mode, speed, and more with your eyes on the road.
Choose Your Boost
You’re in total control of your ride. With a convenient push-to-go throttle and 6 levels of Pedal Assist, you can choose how much or how little assistance you want and ride up to 28mph.
On- or Off-Bike Charging
This ebike’s integrated battery can be charged both on and off the bike. LG 21700 cells enhance the battery capacity so it can store more energy and offer up to 52 miles of range when fully charged.
Off-Road Ready
Heavy-duty 26x4.0 fat tires offer stable, comfortable, and smooth rides on any terrain.
Quiet, Consistent, Confident Braking
Tektro mechanical disc brakes with upgraded semi-metallic pads & 180mm ebike-specific rotors offer reliable stopping power in any weather, so you can brake confidently.
Stay Seen, Stay Safe
Integrated front and rear lights with brake indicator illuminate your path and help improve your visibility while riding in low light.
Tackle Inclines or Cruise Flats
With a robust, versatile Shimano 7-speed drivetrain.
Easy-Change Rear Wheel Removal System
Retrospec’s proprietary easy-change system allows you to easily remove and replace the rear wheel whenever you need to take a look under the metaphorical hood.
All-in-One Tool Included
This ebike comes with all the tools you need for assembly and maintenance – all conveniently folded up in one portable, multi-functional tool that fits in your pocket for tune-ups on-the-go.
Best for all terrain
All terrain
  • Specifications
  • Sizing
  • Financing
  • Assembly & Owner's Manual
  • Sizes 16.5" Frame
  • Material Koa 6061 hydroformed aluminum with, integrated downtube battery and replacable derailleur hanger.
  • Fork ZOOM with 80mm of travle, preload adjustment and lockout.
  • Rims 26" single-wall aluminum 36H, for disc brake
  • Front Hub Aluminum bolt-on with 17mm axle nuts. 36 hole
  • Tires 26x4" Fat MTB
E-Power System
  • Motor 500W rear hub
  • Battery 500Wh/48VLG 21700 cells; Charge on or off bike
  • Display Center mounted black & white LCD
  • Range Up to 52 miles
  • Sensor Cadence
  • Assist Levels 1-6 PAS, Throttle and walk-mode; Class 2/3
  • Rear Derailleur 7 speed Shimano Tourney
  • Shifter 7 speed Shimano Tourney
  • Crankset 3-Piece aluminum
  • Chain KMC 7 speed
  • BB Sealed cartridge
  • Freewheel/Cassette Shimano 7 speed 14-34T
  • Headset 1-1/8” semi-integrated threadedless
  • Brakes 5 Star lever with Tektro mechanical caliper with 180mm EBike specific rotors and semi-metalic pads
  • Handlebars Alloy 31.8mm clamp, 700mm width
  • Grips Lock-on comfort grips.
  • Stem Die-Cast alloy. 31.8mm clamp
  • Saddle Retrospec Sport Comfort saddle
  • Seatpost Aluminum 30.9mm diameter, 400mm length
  • Seatpost Clamp Aluminum quick release
  • Pedals Aluminum plateform with non-slip tread.
  • Kickstand Aluminum chainstay mounted, 40MM bolt pattern
  • Taillight Integrated with brake light function
  • Headlight Integrated front
  • Recommended Weight Limit 350lbs
  • Compatible With Retrospec Rover Trailers, Retrospec Aer Compressor, Tote & Tote Plus Baskets, Haul WIde
How to measure my inseam for a bike

Your inseam can help you find the perfect sized bike (measuring it properly is similar to pant inseams but measured a little differently). Here's how they work:

  1. Stand upright with your feet 6-8" apart.
  2. Using a tape measure or tailor tape, measure from the bottom of your foot to the top of the inside of your leg.
  3. Compare your inseam measurement to the standover height of the bike. You should have about an inch of space between your body and the top tube.
SizeHeight RangeStandover Height
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Assembly & Owner's Manual
Rated 4.8 out of 5 stars
Based on 34 reviews
Total 5 star reviews: 27 Total 4 star reviews: 7 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
34 reviews
  • Jaymz M.
    Verified Buyer
    Rated 5 out of 5 stars
    Better than I 3ver expected it to be!

    Bought this bike due to the already great reviews. And everything from assembly to using the bike has been super easy and it rides completely smooth right out of the box! I plan to use this for hunting and just around the neighborhood and so far I've seen nothing that would prevent me from doing either. Bike shifts great and the system is easy to learn and use. Definitely recommend this bike to anyone looking to adventure out.

  • Travis D.
    Flag of United States
    Verified Buyer
    Rated 5 out of 5 stars
    Great power, but also not

    Great power, but also not too much for an accident prone customer. Love the looks and ride is smooth and flawless.

  • Robert M.
    Flag of United States
    Verified Buyer
    Rated 5 out of 5 stars
    Great E-Bike for the money

    I've had the bike all summer and used it quite a bit; it's a comfortable bike, especially for urban dirt trails. However, I wouldn't recommend taking it on a real mountain bike trail. I installed a rack on the back and strapped a milk crate to carry my waders, boots, and gear. I use it frequently to get to fishing spots and as a shuttle on raft trips. I've never pushed the battery past around 23 miles, and I'm not sure how many more miles it could go, given the bike's weight. That said, I don't pedal much when riding.

    There are a few things to be aware of. The top tube is higher than you might expect, which can make mounting and dismounting tricky if you're not paying attention. If you have shorter legs, you might want to consider the step-through model. For reference, I'm 6'1 " with a 34-inch inseam. My only other complaint is that the bike isn't designed for easy installation of accessories. There's no place to install a water bottle cage, and finding a fat tire back rack that would work was a bit of a hassle. I would suggest that Retrospec invest some time in offering compatible accessories

  • Erik L.
    Flag of United States
    Verified Buyer
    Rated 5 out of 5 stars
    Great so far

    Just got my bike, only rode it twice so far but like everything about it! I did get a different seat when I ordered it, very comfortable!

  • Jerome
    Flag of United States
    Verified Buyer
    Rated 4 out of 5 stars
    it's great just rides rough

    just rides rough, but the bike is fine for what I use it for.

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