Looking for a car alternative for errands and school drop-offs? The Tern HSD S+ has the hauling capacity of a cargo bike without the footprint. The heavy duty, extra long, double decker rear rack can accommodate both a child seat and panniers—most standard bike racks can’t. Not only is the HSD S+ a more capable hauler than a standard bike with a rear rack, it’s smaller. The HSD S+ is shorter in length than a standard size bicycle. Smaller and more nimble than a 700c electric city bike—yet it fits you and your child, plus the groceries. Thanks to pedal assist, the additional weight of your cargo does not increase the amount of effort you need to provide.
An HSD S+ can be stored vertically in what we call extreme wheelie mode (tipped up on its back rack) with its handlebar folded down. In other words, the Atlas H rear rack doubles as a strong, sturdy stand. You can store the bike in your mudroom, and it won’t take up more space than your coat rack.
One HSD S+ can be shared among many, all thanks to the step through style frame and adjustable stem and seatpost. It resizes in a snap to fit riders 4’11” to 6’5” tall, and because it has a slack seat tube angle, the cockpit will be just as roomy for taller riders as it is for shorter folks.
The Tern HSD S+ is a fully automatic bike with a smooth, silent, clean, durable, maintenance-free Gates belt drive. With Enviolo’s integrated automatic shifting, you set it at a power level you like and a cadence you’re comfortable with, and it handles it from there. No shifting down at stops signs. When you get to a hill, it handles it. The top-of-the-line Bosch Performance Line motor flattens hills and fights headwinds. Meaning, you’ll want to ride more often. With a maximum torque of up to 65 Nm, you get dynamic and sporty acceleration up to 20 mph. The 500Wh battery gives you a range of up to 74 miles between charges. Wide rims and thru-axle hubs provide a rock solid foundation for hauling cargo. Hydraulic disc brakes provide stopping power in any weather. The HSD S+’s built-in lighting is connected to the main battery—there’s no need to worry about charging lights or replacing single-use batteries. The Intuvia display activates the lights and gives all the important information. The custom Suntour suspension fork and Cane Creek Thudbuster ST suspension seatpost absorb road vibration from road cracks and potholes, and balloon tires offer comfort and a smooth ride with the reliability of Schwalbe’s RaceGuard puncture protection. The HSD S+ weighs about the same as a regular e-bike, but with a longer wheelbase and extra low center of gravity, it’s a smoother and more stable ride. For added security, there’s an Abus frame lock keyed the same as the battery.
The kid and cargo accessories are really thought out. Roomy, HSD sized panniers that stand up or roll down. A virtually indestructible bike basket that doubles as a shopping basket. Commuter bags with all the bells and whistles. You can even add a heavy duty front rack. The weight limit on the rear rack is 132 lb. It fits one Thule Yepp Maxi, Yepp Nexxt Maxi, or Bobike GO Maxi child seat—no adapters needed. There’s a passenger kit in development.
