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Retrospec JAX REV 500 Electric Bike

Retrospec JAX REV 500 Electric Bike

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Bike Size
One size
Wheel size
20 in
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Product details

Your adventure-anywhere electric bike Jax Rev folds to fit your lifestyle. Its frame, handlebars, and pedals collapse to the perfect compact, car-friendly size, so you can get revved up for any adventure, anywhere, anytime. Bumps and uneven terrain are no match for Jax Rev’s fat tires and suspension fork, and its pedal-assist and throttle provide speed boosts as you ride along the trail. This single speed electric bike is fast, fun, and functional all in one.

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 37 miles. Charges within 5-6 hours.

Off-Road Ready Fat 20x3.0 tires with large tread grip onto chattery terrain for enhanced stability.

Bike type
City & Recreation
Bike frame material
Electric bike class
Throttle, Pedal-assist
Electric bike motor type
Frame Mounted
Electric bike battery
36 or 48V Li-ion battery
Age Group
Unisex, Men's, Women's
2x rear dropout eyelets, 1x rear fender eyelet, rear rack mounts
Brake type
Mechanical Disc
JAX Mechanical disc Front & Rear, 160mm
Number of gears
Suspension type
Full suspension
Suspension fork 80mm travel, alloy crown, steel stanchions, steel lowers, 1 1/8" (28.6mm)
Alloy low-rise, 580mmW x 25mm rise
20 x 3.0, S/V
Model year
Battery capacity
Electric bike motor
48V/500W Motor Brushless rear hub motor, 9-pin connector 48V/750W Motor Brushless rear hub motor, 9-pin connector
KMC 1/2 x 1/8"
Alloy 3-piece 152mm x 48T x 1/8", w/inside chainguide, outside chainring cover
Front Hub
Steel bolt-on
Threaded, steel, 1 1/8" (28.6mm)
High Impact, Reinforced Nylon Resin Platform, 9/16"
Rear Hub
Hub motor bolt-on, 36H x 13G
Alloy 20", 36H x 13G
Retrospec SuperSoft Comfort
Alloy w/integrated micro-adjust clamp, 27.2 x 350mm
Alloy Folding QR
Retrospec Comfort
Retrospec JAX REV 500 Electric Bike
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Top reviews
Would an expert recommend this for you?
Nick DeyArmond
Nick DeyArmond
Verified cycling expert
Reviewed Nov 23, 2022

Riders looking for a super solid - yet simple build, good range, and a price tag that comes in way lower than the competition. The 3x20'' tires are fat enough to provide stability and confidence through most terrain while still being nimble enough to be an ultra fun ride! The lower profile allows the rider more control over the bike, and the disc brakes provide plenty of stopping power. The simple single gear design keeps maintenance costs low with a clean appearance - but the added fenders, headlight, and rear rack provide many upgrades found on much more expensive bikes. Riders can expect a 30-40 mile range on the battery, and the JAX's class 2 ranking means that you have a full throttle option to fall back on if your legs get tired. Did I mention that it folds up for easy storage?