
Jupiter Defiant ST Fat Tire Folding Electric Bike
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Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
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The Jupiter Defiant ST is a folding fat-tire electric bike with a step-through frame, front and rear shocks, and 20-inch tires that are 4 inches wide. A 750W geared hub motor peaks at 1130W, and the 48V 13.2Ah battery is built into the frame and locks with a key. It ships with a rear rack, full fenders and a sprung saddle, so it is ready for commuting and errands. It suits riders who want one bike for pavement, gravel, snow and sand and who need to fold it for a car trunk or small apartment. Against rigid folding e-bikes it trades some weight and pedaling efficiency for comfort and grip on loose ground.
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Store links may earn us a commission. Some prices via Klarna.
Lowest price we've seen: $1,799.00 on Nov 9 at Campingworld. Tracked across 2 stores since Nov 9.
The Jupiter Defiant ST is a folding electric bike with a step-through frame, which makes it easier to mount and dismount. It has dual shocks, front and rear, for comfort on rough terrain. The 4" x 20" all-terrain fat tires are made for snow, sand and mud.
A geared hub motor delivers 1130W peak power and 750W sustained. The 48V 13.2Ah lithium-ion battery is concealed in the frame, can be removed, and locks with a key. The LCD display shows speed, distance, pedal assist level and battery life.
The bike has leather grips and a dual spring comfort saddle with a mesh top. It comes with a MIK compatible rear rack and full city fenders.