HSD S8i

HSD S8i

Enormously Useful. Surprisingly Smaller.
$3,799.00
  • Bosch® Active Line Plus motor with Purion display
  • 400 Wh battery for a range of up to 110 km (69 mi)
  • Custom Suntour suspension fork
  • Shimano® Nexus 8 internal-gear hub
  • 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
  • ETA early 2020
Photo may show optional accessories.
Black
Tundra
20" wheels
Electric
Top-Tier

A balanced mix of smooth riding and agility—without feeling twitchy. An upright position to see over traffic and a sensitive suspension fork for comfort make it suitable for touring as well.

aktiv Radfahren

Product Reviews

Ebiketips

The HSD you’d buy just as a city workhorse, and then eventually you’d realise that it was capable of doing 90% of the journeys your car did.Read more

4.5 stars

WIRED

Tern’s folding, compact commuter ebikes have gotten even better.
Read more

Electrek

A cheaper e-bike will get you to your destination. But a bike like the Tern HSD will get you there reliably, day after day, and the ride will be so much better thanks to the higher quality components and better engineering of the entire system.

Read more

Ebiketips

Riding the bike is simplicity itself.

Read more

Electrek

The HSD comes in multiple flavors designed to hit a wide range of price points. The most advanced version even offers automatic shifting thanks to a new partnership with Enviolo.

Read more

Elektrobike

With the new HSD, Tern has created an interesting e-bike which forms a convenient combination of compact dimensions and high load capacity—and which rides harmoniously and comfortably.

Read more

aktivRadfahren

A balanced mix of smooth riding and agility—without feeling twitchy. An upright position to see over traffic and a sensitive suspension fork for comfort make it suitable for touring as well.

Bicycling

It best suits a rider who wants all the capabilities of the GSD, but doesn’t need quite as much carrying capacity.

Read more

Bike Rumor

The new HSD is the smaller sibling to the dual-battery GSD e-cargo bike, opting for a smaller footprint in your garage and livelier feeling ride.

Read more


Specifications

General Info
Color:
Black
Tundra
Wheel Size:
20" wheels
Speeds:
1 x 8
Weight:

25.4 kg (55.9 lb)

Folding Size:
163 x 40.5 x 86 cm (64" x 15.9" x 34")
Folding Time:
5 sec
Frame Sizes:
One size
Gear Inches:
31" - 95" (2.47 - 7.56 m)
Distance: Seatpost to Handlebar:
Min: 490 mm (19.3"); Max: 590 mm (23")
Distance: Saddle to Pedal:
Min: 690 mm (27.2") Max: 1050 mm (41.3")
Suggested Rider Height:
150 - 195 cm (4'11" - 6'5")
Max Gross Vehicle Weight:
170 kg (374 lbs)
Max Rider Weight:
120 kg. (264 lbs.)
Frame
Frame:
Tern HSD, 6061-AL, patented design, Tern sliding dropouts, EFBE Tri-Test approved: 170 kg
Fork:
Suntour custom for Tern, 1.5" tapered Chromoly steerer, 32 mm stanchions, Thru-axle, 70 mm travel, EFBE tested for 170 kg
Cockpit
Handlepost:
Tern Physis 3D (G2), 3D forged, 5 patented technologies, 12°, 290 mm
Stem:
Tern Andros (G2), adjustable, forged construction, patented technology
Headset:
Tern Flux Pro Taper, 1.5", angular contact bearings, Physis integrated
Handlebar:
Tern Sweep, 6061-AL, Tern Andros adapted
Grips/Bar Tape:
Ergon
Saddle:
Tern HSD
Seatpost:
Tern Telescope, 34.9/30.9 mm, 2014-AL
Seatpost Clamp:
Tern Collar, 6061-AL, 2pc
Brakes
Front Brake:
Magura MT4, hydraulic disc, 180 mm rotor
Rear Brake:
Magura MT4, hydraulic disc, 160 mm rotor
Brake Levers:
Magura, hydraulic
Brake Cable & Housing:
Magura, hydraulic
Wheels
Front Wheel:
Tern Atlas H, cargo wheel
Rear Wheel:
Tern Atlas H, cargo wheel
Front Hub:
Novatec, Thru-axle, sealed bearings
Rear Hub:
Shimano Nexus 8
Spokes and Nipples:
Stainless steel
Rims:
Tern Atlas H, wide 35 mm
Tires:
Schwalbe Big Ben, 55-406, RaceGuard puncture protection, ECE-R75 ebike certification
Transmission
Shifter(s):
Shimano Nexus 8
Crankset:
Tern HSD custom, Gates CDX CNC machined beltring
Cassette/Freewheel:
Gates CDX, precision CNC machined cog
Bottom Bracket:
Motor integrated
Chain:
Gates Carbon Drive CDX belt
Pedals:
Urban with non-slip surface
Shifter Cable & Housing:
Shimano
E-System
Motor:
Bosch Active Line Plus (Gen 3), max speed 25 kph (EU); max speed 20 mph (US)
Battery:
Bosch PowerPack 400
Display:
Bosch Purion, 4 mode selectable, walk assist
Range:
42 -110 km (26-69 mi)
Bells & Whistles
Bell:
Aluminum
Chainguard:
Gates integrated
Kickstand:
Ursus, rear mount
Luggage Socket:
Combo Mount
Front Light:
Tern Valo 2.1, 45 lux/190 lumens
Rear Light:
Herrmans H-Trace, for eBike
Fenders:
SKS, stainless hardware
Rack(s):
Atlas H rack, Atlas Rack Mount, 6 point mounting
Accessory:
ABUS 5650L, keyed-alike with Bosch battery