The series HSD is the right amount of bike if you want the benefits of a cargo bike but still prefer the convenience and handling of something less bulky. Lean and nimble, the HSD is shorter than a regular bike yet capable of hauling a max gross vehicle weight (MGVW) of 180 kg (397 lb). And thanks to best-in-class components, rigorous lab testing, and UL 2849 certification, you can count on having a safe, reliable bike. UL 2849 certified & EN 15194 compliant, European standard for Electrically Power Assisted Cycles (EPACs).
Compact and Easy to Store: Despite being powerful and versatile, the Tern HSD is designed to be compact. It's smaller than a regular bike, making it easier to store in tight spaces like RVs.
Powerful Motor for Easy Riding: The HSD has an electric motor that helps you pedal, so you don't have to work as hard. This makes riding up hills or against the wind much easier and more enjoyable.
Great for Carrying Stuff: It's built to carry heavy loads, whether it's groceries, a child, or even some gear for your biking adventures. The sturdy frame and strong rack make it reliable for transporting items.
Comfortable Ride: The bike is designed for comfort with an upright seating position, adjustable handlebars, and a smooth ride, even on bumpy roads. You can ride it for longer distances without feeling tired or sore, and one size fits all.
Low Maintenance: The Tern HSD is built to last with quality components, so you won't have to spend much time or money on repairs. Plus, the belt drive (instead of a chain) and internally-geared hub is cleaner, doesn't require regular oiling and is long-lasting.
Fun to Ride: Lastly, the HSD is just fun! The electric assist gives you a nice boost, making cycling more enjoyable when out for a ride while camping.
| Frame | Tern HSD, 6061-AL, patented design (shared HSD platform) |
| Finish | Airstream special-edition Satin Aluminum |
| Frame Size | One size fits all |
| Motor | Bosch Performance Line, Class 1, 75 Nm torque, 340% assist |
| Display / Control | Bosch Intuvia 100, detachable |
| Transmission | Shimano Nexus INTER-5E internally geared hub |
| Belt Drive | Gates CDX Belt Drive |
| Brakes | Hydraulic disc (shared HSD platform spec) |
| Tires | Schwalbe Big Apple-family, 20" x 2.15", puncture-protected |
| Max Gross Vehicle Weight | 180 kg (397 lb) |
| Bike Weight | approx. 27.9 kg (61.5 lb) |
| Certification | UL 2849 (e-bike system) & EN 15194 (EPAC) compliant |
This is a cosmetic special edition of the standard HSD P5i frame/platform; Tern has not published an independent geometry chart for the Airstream edition, so dimensions above are inherited from the base HSD P5i geometry and should be treated as approximate.
| Frame Size | One size (shared HSD frame platform) |
| Standover Height | ~48.5 cm (19.1 in), per base HSD platform |
| Wheelbase | ~119 cm (46.9 in), per base HSD platform |
We accept all returns of new, unused, unopened, goods within 7 days of your purchase. If you are not satisfied with an item, simply ship it back to us within 7 days for a full refund. Funds will be returned to the payment method used at checkout. Sorry, No returns on bicycle purchases / frame sets or items less than $25.
Send returns to:
MECHANIC Bicycle Pro Shop:
ATTN: Returns, (Your Order #)
1327 Darby Road
Havertown, Pennsylvania, 19083