Jax Rev Folding Electric Bike

$1,199.99 Regular price

Starting at $109/mo with . See if you qualify

Pay 4 interest-free payments of $300 with

Our most portable ebike ever
Jax Rev packs down to the perfect compact, car-friendly size for your weekend adventures. A battery range of up to 46 miles can handle even the longest of trips. Assisted start technology makes awkward starts and stops a thing of the past, and a 20 MPH top speed with extra stable, Fat 20 x 3.0 tires and front suspension fork allow you to conquer any terrain on the way to work, the campsite, or anywhere in between.

Starting at $109/mo with . See if you qualify

Pay 4 interest-free payments of $300 with

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

Your adventure-anywhere electric bike

Get to know your ride
Jax Rev Folding Electric Bike | Matte Black


Top speed

Up to 46 Miles of Range

500W-37 miles & 750W-46 miles

5 Pedal Assist Levels

Propel while pedaling


Brushless rear hub motor


Li-ion battery

40x30x23” Collapsed

Easily pack up between adventures
Compact and Portable
Folding frame easily collapses and folds to a car-friendly size.
Quick Access to Controls
Handlebar-mounted LED control panel lets you select pedal assist level, monitor charge, and activate Start Aid for a 4mph boost at takeoff – no wobbly first pedal strokes.
Simple Riding, Low Maintenance
Single speed drivetrain promotes easy riding and is low maintenance.
Press to Go
Convenient thumb throttle puts 350/500W worth of power at your fingertips.
Durable, Long-Lasting, High Range
Li-ion battery offers a range of up to 46 miles. Charges within 5-6 hours.
Off-Road Ready
Fat 20x3.0 tires with large tread grip onto chattery terrain for enhanced stability.
Best for gravel
All terrain
  • Specifications
  • Sizing
  • Financing
  • Assembly & Owner's Manual
  • Sizes 1 size: 20"
  • Material Alloy, TIG welded
  • Dropouts 2x rear dropout eyelets, 1x rear fender eyelet, rear rack mounts
  • Fork Suspension fork 80mm travel, alloy crown, steel stanchions, steel lowers, 1 1/8" (28.6mm)
  • Rims Alloy 20", 36H x 13G
  • Hubs F: Steel bolt-on, R: Hub motor bolt-on, 36H x 13G
  • Spokes 13G UCP w/brass nipples, black
  • Tires 20 x 3.0, S/V
E-Power System
  • 48V/750W Motor Brushless rear hub motor, 9-pin connector
  • 48V/750W Battery Li-ion + Charger w/US plug, w/power level display
  • Drive Mode, Display PAS/throttle, speed sensor, LCD handlebar-mount display panel w/5 assistance levels, w/Start-Aid 6kph (~4mph)
  • Controller Yelchm Technology
  • Charge Time (empty to full) 10.4Ah battery (500W): 5-6 hours
  • Charge Time (empty to full) 13.0Ah battery (750W): 6-7 hours
  • Range 48V/750W Up to 46 miles
  • Crankset Alloy 3-piece 152mm x 48T x 1/8", w/inside chainguide, outside chainring cover
  • Chain KMC 1/2 x 1/8"
  • BB Steel sealed cartridge, 100 x 159.5mm
  • Freewheel/Cog 18T x 1/8"
  • Headset Threaded, steel, 1 1/8" (28.6mm)
  • Brakes JAX Mechanical disc Front & Rear, 160mm
  • Handlebars Alloy low-rise, 580mmW x 25mm rise
  • Grips Retrospec Comfort
  • Stem Alloy Folding QR
  • Saddle Retrospec SuperSoft Comfort
  • Seatpost Alloy w/integrated micro-adjust clamp, 27.2 x 350mm
  • Seatpost Clamp Alloy QR
  • Pedals High Impact, Reinforced Nylon Resin Platform, 9/16"
  • Kickstand Alloy chainstay mount
  • Rear Carrier Steel
  • Bell Alloy
  • Light(s) Front (4x AAA) + Rear (2x AA), batteries included
  • Fenders Steel w/steel stays
  • Chaincover Chainring cover
  • Item Weight 63 lbs (battery included)
  • Recommended Weight Limit 250lbs
  • Compatible With Retrospec Rover Trailers
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
20" 5'-6'4"+ 27"
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Assembly & Owner's Manual
Rated 4.9 out of 5 stars
Based on 19 reviews
Total 5 star reviews: 18 Total 4 star reviews: 0 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
19 reviews
  • Caitlyn
    Verified Reviewer
    Rated 3 out of 5 stars
    Jerky and hard to pedal without power

    This bike is a lot of fun, but beware it takes getting used to. I bought this for my 67 year old mother however she is too nervous to ride it because it is so powerful and jerks pretty hard when you start to pedal. Also she wanted to be able to get exercise but have a little assistance at times to keep up with my father. But the bike with out the engine assistance is very difficult to pedal. No gears. Definitely a bike for the brave, commuters, and travelers. Not mothers or people who want a bit of exercise.

  • Glen I.
    Flag of United States
    Verified Buyer
    Rated 5 out of 5 stars
    Best all around elec bike- simple, easy to transport.

    I have the Koa Rev 750W (great bike) and the Jax 750W. I love the Jax because of its simplicity and folding frame. The single chain drive gear with the 5 speed motor drive provides all the power I need for urban and dirt/gravel road driving. The Jax is fast from the start! My only complaint is the current price ($899 May 2023) is much lower than the $1400 I paid a year ago. But hey, what’s a few dollars among friends?

  • Tony B.
    Flag of United States
    Verified Buyer
    Rated 5 out of 5 stars
    Jax 500 watt

    Love my retrospec 500watt jax have gone 47.3 miles so far without charging still two bars left.Peddle assist is awsome.

  • kitty
    Flag of United States
    Verified Buyer
    Rated 5 out of 5 stars
    Easyyy Ride

    This bike doesn't wobble as other e-bikes do. No one younger then 18, because of it being a bigger bike, it can be harder to control

    Now, adults will have a blast. Great for taken to work. Does fit front of a bus. its quite heavy though.

    Great for the money.

    have fun

  • Greg G.
    Flag of United States
    Verified Buyer
    Rated 5 out of 5 stars
    Love this bike!

    Very happy with this bike. Nice ride, solidly built and easy to fold.

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