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Jax Rev Folding Electric Bike

Regular price$1,199.99
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Retrospec
$1699.99
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Start Aid
Pedal assist levels display
Throttle lever

Your adventure anywhere bike

Our Jax Rev Folding Electric bike folds to fit your lifestyle. Last minute weekend getaway? This e-bike's folding frame, handlebar and pedals collapse to the perfect compact, car-friendly size. Get revved up for the adventure that awaits once Jax hits the trails. Its fat tires roll seamlessly over bumps, and its suspension fork is there to absorb any shocks along the way. The Start Aid feature ensures a smooth take off, while pedal-assist and the throttle provide boosts along the way. Jax Rev includes a bike rear rack to haul your campsite cargo, a front and rear light for safety, and protective fenders. This single speed electric bike is fast, fun, and functional all in one.

Li-ion Battery

Li-ion batteries are durable and long-lasting and offer a range of 37-46 miles. Anticipate a 5-6 hour charge time.

Brushless Rear Hub Motor

This powerful motor supports the rider while pedaling, and is quiet.

Class 2

Not all e-bikes are class 2; ours are. This means the bike is equipped with pedal-assist and throttle-assisted functions to get you cruising up to 20mph.

Display

Convenient LED handlebar-mount display shows selected pedal assist and battery levels, so you can keep track of your charge.

Start Aid

Also known as walk-assist, the Start Aid function can be activated with a button on the handlebar-remote. When activated, the motor pushes the bike at 4mph without you having to pedal, saving you from initial wobbles.

Frameset
  • 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)
Wheelset
  • 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
Drivetrain
  • 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"
Components
  • 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"
Extras
  • 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
SizeHeight RangeStandover Height
20" 5'-6'4"+ 27"
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.

Get everything you need to start moving

5.0
Rated 5.0 out of 5 stars
Based on 18 reviews
Total 5 star reviews: 18 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
18 reviews
  • Glen I.
    Flag of United States
    Verified Buyer
    5/30/23
    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
    2/26/23
    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
    1/30/23
    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
    12/1/22
    Rated 5 out of 5 stars
    Love this bike!

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

  • Tony C.
    Flag of United States
    Verified Buyer
    11/16/22
    Rated 5 out of 5 stars
    Best Bike

    I recommend you guys too get one , they are so much fun too ride.

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