Overview

Works as advertised, they are a must have for all day no worries riding.

Range Extender Kit

EVERY THING WORKS, TIMELY DELIVERY MORE THAN SATISFIED

Extra battery on juggernaut classic extends my riding 15-18 miles up and down hills. I am 6 ft 215lbs, and having PAS on 5, if that helps.

Been riding ebikes for years. Just purchased an Ultra Duo with an extender.
52v x 17.5ah main + 14ah extender. I don’t have a lot of rides in yet on this bike to confirm, but the burn rate looks to be WELL ABOVE the generally accepted rule of thumb for distance calculation of 20 watts per mile. This is even w/ street tread tires 26 x 3.5. at 38 psi. I averaged around 15w/ mile on my old bike: 48V x 17.5ah over several hundred of rides with an avg distance of 32 miles per ride. Unless you’re riding just in your local neighborhood, on short rides, you're going to need an extender. Time will tell if I should have gone with the 17.5ah extender. Liking the new bike a lot so far!!!

I give the company 5 star, but I do recommend all rider go to your local bike shop and tryout the handlebars that comes with bike to determine if they fit. I replace my handlebars and also had to repair/replace the wires

I purchased a juggernaut ultra duo 3 partially for its dual battery setup. It works fantastic and definitely necessary when running 4 inch wide low pressure tires. I really like having a separate charger.

Makes me feel like the energized bunny, keeps going and going😉.

Range Extender Kit