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Details That Matter — S9i Sport
Why the HSD
Why Clever Cycles
Details That Matter — S9i Sport
Why the HSD
Why Clever Cycles
Description
The flagship of Tern's new "Mighty but Mini" family. The HSD Gen 3 S9i Sport pairs a Class 3 (28 mph) Bosch Performance Line Sport motor with the 3x3 NINE internal 9-speed hub, wireless electronic shifting, and a Gates belt — the lowest-maintenance drivetrain Tern makes — plus a Cane Creek suspension seatpost over the Suntour suspension fork. 419 lb capacity, fits riders 4'11" to 6'9", parks vertically, folds flat. Fenders, rack and lights included.
Side Effects
Bike Facts
Serving size Carries up to 2 people
| Amount per ride | |
|---|---|
| Joy | 100% |
| Bike Details | |
| Frame Material | 6061 Aluminum |
| Brakes | Magura hydraulic disc |
| Number of Gears | 9 (3x3 NINE internal hub, wireless eShift, Gates belt drive) |
| Rider Height | One size: 4'11" – 6'9" (tool-free Comfort Cockpit) |
| Weight | 63.9 lb (29 kg) |
| Ebike Class | 3 |
| Motor Power | Bosch Performance Line Sport (Smart System BES3), 90 Nm, 28 mph |
| Battery / Range | Bosch 545 Wh battery |
| Suspension | Suntour suspension fork + Cane Creek suspension seatpost |
| Max Load (lbs) | 419 |
| Included Accessories | Fenders, rear rack, front & rear lights |
| Maintenance Requirements | Low (belt drive + internal hub) |
Size Information
One Size, Many Riders
HSD Gen 3 — fits 4′11″ to 6′9″
The new HSD Gen 3 fits an even wider range of riders than before: from about 4′11″ to 6′9″ (150–205 cm). The tool-free Comfort Cockpit adjusts in seconds — saddle height, bar height, and reach — so the same bike genuinely works for everyone in the household. The low Easy-Step frame makes mounting easy for smaller riders, and the frame is independently tested to its full 419 lb capacity at every size.
HSD Gen 2 — fits 4′11″ to 6′5″
The Gen 2 HSD fits riders from about 4′11″ to 6′5″. Its adjustable stem lets you change your position in seconds — no tools required — making it easy to share between family members. With the Easy-Step frame, smaller riders can hop on and off with confidence, no gymnastics required.

Not sure which generation is right for you? Come test rid
Shipping Policy
Warranty
UPC / Part Numbers
| Option | SKU | UPC |
|---|---|---|
| Gloss Basalt | 12-91-99 | 810067168779 |
| Gloss Thomas | 12-91-100 | 810067168786 |