The Duo series. ebikes for everyone.The Juggernaut Duo Series is all about flexibility. Hub-drive or mid-drive, step-over or step-thru, single battery or dual battery, entry-level or high-end. No matter your needs, there's probably a Duo for you. Watch this video to see how The 3 Duo models stack up. simple. capable. affordable.The Hub Duo is our most user-friendly & affordable eBike in the Juggernaut family. Thanks to the 750W hub-drive motor, you'll get an easy-going ride with plenty of power to boost you up those tough hills. Mix that with our 5-star customer service and you've got yourself a perfect entry-level eBike.