Tern HSD S+ 2021 – Electric Folding Bike

Enormously Useful. Surprisingly Smaller.

The HSD is mighty but mini: It’s easy to handle, easy to share, extremely comfortable to ride, carries a whole lot of cargo—and all of this in a compact design that’s shorter than a standard bicycle.

Easy to Handle

Whether you’re riding, storing, or moving it around, the HSD is a breeze to handle. It’s shorter than a regular bike and its weight is the same as a regular ebike.

Automatic Shifting

The new Enviolo AUTOMATiQ system does all of the shifting for you, so you can worry less and bike more. All you need to do is pedal. It’ll shift up as you accelerate from a standstill, and shift down when you reach a stoplight. Set your desired pedaling cadence on the integrated Bosch Intuvia controller and let Enviolo do the rest.

Flat Fold

Fifteen seconds and the HSD transforms into a flat package that’s perfect for fitting into SUVs, station wagons, or bus storage compartments.

Ready to Haul

Despite its diminutive stature, the HSD is a mid-sized cargo bike with some serious hauling capacity. With a maximum gross vehicle weight of 170 kg (374 lb) and an XL-sized Atlas H Rack, it’ll carry a week’s worth of groceries or camping equipment for the weekend. It even has a dedicated trailer mount, so adding extra cargo is a cinch.

Vertical Parking

The HSD flips up for convenient vertical parking. Take it upstairs in an elevator and park it inside at home or at work—it needs just a wee bit of floor space.

A Comfier Ride

With a longer wheelbase and extra-low center of gravity, the HSD is smoother and more stable than your standard ebike. Easy-Step frame design paired with an adjustable stem and seatpost offers a comfortable upright riding position for both taller and shorter riders. Add a suspension fork and balloon tires and even the meanest cobblestone roads are comfortably navigated.

Key Features:

• Next-generation Bosch® Performance Line motor with Intuvia display
• 500 Wh battery for a range of up to 118 km (74 mi)
• Integrated automatic shifting
• Enviolo Sport 380 hub
• Custom Suntour suspension fork
• Cane Creek® Thudbuster ST suspension seatpost
• Magura® MT4 hydraulic disc brakes
• Gates Carbon Drive® CDX belt
• Abus® keyed-alike frame lock
• Fits riders from 150 to 195 cm (4’11” – 6’5”)
• Fits one Thule® Yepp Maxi, Yepp Nexxt Maxi, or Bobike® GO Maxi child seat—no adapters needed

Occasionally, without notice, manufacturers change product design and/or specifications.

Specification