The single passenger bike that started it all is back, new and improved!
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With thousands of kilometers behind them, the HSD is back with an updated e-bike system, bigger battery and higher carrying capacity. You might not be able to have it all, but can very much have more.

With the advent of Bosch's new gen 3 "Smart System" the HSD gets an overhaul. Better smartphone connectivity with the Flow App, the ability to edit your ride modes, GPS tracking available with the Connect Module and an increased battery size of 545Wh. 75Nm of torque with the updated Performance Line Motor

Upgraded shimano Deore 10 speed gears for better shifting performance

Tested up to 180kg for the maximum total gross weight. 80kg carry capacity for the rear rack, allowing you to carry 1 x 80kg adult or 8 x 10kg dogs (we don't recommend carrying 8 dogs on the back of your HSD).  

SPEEDS: 1 x 10
WEIGHT: 27.6 kg (60.8 lb)
GEAR INCHES: 30 - 97" (2.36 - 7.72 m)
FOLDING SIZE: 165 × 39.5 × 87 cm (65 × 15.6 × 34.3 in)
FOLDING TIME: 5 seconds
DISTANCE: SEATPOST TO HANDLEBAR: 54.5 - 62.5 cm (21.5 - 24.6 in)
DISTANCE: SADDLE TO PEDAL: 70 - 102.5 cm (27.6 - 40.4 in)
SUGGESTED RIDER HEIGHT: 150 - 195 cm (59.1 - 76.8 in)
MAX GROSS VEHICLE WEIGHT: 180 kg (396.8 lb)
MAX RIDER WEIGHT: 120 kg (264.6 lb)


FRAME: Tern HSD, 6061-AL, patented design, Tern sliding dropouts, EFBE Tri-Test approved: 180 kg
FORK: Suntour custom for Tern, 1.5" tapered Chromoly steerer, 32 mm stanchions, Thru-axle, 70 mm travel, EFBE approved: 180 kg


HANDLEPOST: Tern Physis 3D, 3D forged, 5 patented technologies, 12°, 290 mm
STEM: Tern Andros, adjustable, forged construction, patented technology
HEADSET: Tern Flux Pro Taper by FSA, 1.5", angular contact bearings, Physis integrated
HANDLEBAR: Tern Sweep, 6061-AL, Tern Andros adapted
SADDLE: Tern Upright by Velo
SEATPOST: Tern Telescope, 34.9/30.9 mm, 2014-AL


FRONT BRAKE: Tektro, hydraulic disc, 180 mm rotor
REAR BRAKE: Tektro, hydraulic disc, 160 mm rotor
BRAKE LEVERS: Tektro, hydraulic disc
BRAKE CABLE & HOUSING: Tektro, hydraulic disc


FRONT WHEEL: Tern Atlas H, cargo wheel
REAR WHEEL: Tern Atlas H, cargo wheel
FRONT HUB: Novatec, Thru-axle, sealed bearings
REAR HUB: Novatec, sealed cartridge bearing, disc
SPOKES & NIPPLES: Stainless steel
RIMS: Tern Atlas H, wide 35 mm
TIRES: Schwalbe Big Apple, 55-406, puncture protection, Reflex


SHIFTER(S): Shimano Deore, 1 x 10 spd, trigger
REAR DERAILLEUR: Shimano Deore Shadow+
CRANKSET: Tern HSD custom
CASSETTE/FREEWHEEL: Shimano 11-36T, 10 spd
BOTTOM BRACKET: Motor integrated
CHAIN: KMC 10 spd, for eBike, EPT corrosion resistant coating
PEDALS: Urban with non-slip surface
SHIFTER CABLE & HOUSING: Jagwire LEX-SL, slick treatment, alloy ferrules


MOTOR: Bosch Performance, 340% Assist, 75 Nm Torque, max speed 25 kph (EU); max speed 20 mph (US)
BATTERY: Bosch PowerPack 545
DISPLAY: Bosch Intuvia 100 w/ LED remote, 4 mode selectable, walk assist, connectivity with Bosch eBike Flow app, electronic bike lock
LOCK & ALARM: Optional
RANGE: 545 Wh: 51-121 km (32-76 mi)
CHARGER: 220V, 4A (EU); 100-240V, 4A (US)


BELL: Pitch Plus, brass
CHAINGUARD: Tern Custom, full chain cover
KICKSTAND: Ursus, rear mount
FRONT LIGHT: Tern Valo Direct, 190 lumens
REAR LIGHT: Herrmans H-Trace, for eBike
FENDERS: SKS, stainless hardware
RACK(S): Atlas H rack, Atlas Rack Mount, 6 point mounting, 80 kg capacity
FRAME LOCK: ABUS, keyed-alike with Bosch battery