Tern GSD S10

Enormously Useful. Surprisingly Small.

The GSD is designed to carry two kids, a week’s worth of groceries, or 180 kg of cargo, but it’s only 180 cm long—the same length as a standard bike. With Tern’s best-in-class folding technology, it packs down small enough to fit in a VW Touran or an urban apartment. Plus, it adjusts to fit riders from 150 – 195 cm—so mom, dad and the kids can all share it.

A Utility Bike Designed to Fit Your Life.

Despite everything it can haul, the GSD is actually the same length as a regular bike, so it fits anywhere a standard bike can. But there are lots of places a standard bike doesn’t fit. That’s why we designed it to pack down to 1/3rd its volume in only 10 seconds. That means you can store your utility bike in your urban apartment, fit it in the elevator, or stash it in a train for weekend getaways.

WHEEL SIZE:
20" wheels
SPEEDS:
1 x 10
WEIGHT:
27.06 kg (59.66 lb) w/ 1 battery

FOLDING SIZE:
173 x 40 x 83 cm (71" x 15.7" x 33”)
FOLDING TIME:
5 sec
FRAME SIZES:
181 cm (Total Length)
GEAR INCHES:
29" - 95" (2.31 - 7.57 m)
DISTANCE: SEATPOST TO HANDLEBAR:
Min: 490 mm (19.3") Max: 560 mm (22")
DISTANCE: SADDLE TO PEDAL:
Min: 690 mm (27.2") Max: 1120 mm (44.1")
SUGGESTED RIDER HEIGHT:
150 - 195 cm (4'11" - 6'5")
MAX GROSS VEHICLE WEIGHT:
200 kg (440 lbs)
MAX RIDER WEIGHT:
120 kg. (264 lbs.)

FRAME:
Tern GSD, 7005-Al, patented MultiTruss design
FORK:
Tern GSD, 1.5" Taper, Boost Thru-axle, 110 mm, 7005-AL

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, 27 degrees, 6061-AL, Tern Andros adapted
GRIPS/BAR TAPE:
Ergon GC10, for swept bar
SADDLE:
Tern GSD, with rear handle
SEATPOST:
Tern Telescope, 34.9 mm, 2014-AL

FRONT BRAKE:
Magura MT5, 4-piston hydraulic disc, 180 mm rotor
REAR BRAKE:
Magura MT5, 4-piston hydraulic disc, 180 mm rotor
BRAKE LEVERS:
Magura, hydraulic

FRONT HUB:
Tern Atlas, Boost thru-axle
REAR HUB:
Tern Atlas, Boost thru-axle, Syntace X-12 standard, ebike reinforced design
SPOKES AND NIPPLES:
Stainless steel, 13G
RIMS:
Tern Atlas, ultra wide 36 mm, dual reinforced joint
TIRES:
Tern x Schwalbe Super Moto-X, 62-406, Green Guard puncture protection, Reflex

SHIFTER(S):
Shimano Deore, 1 x 10 spd
REAR DERAILLEUR:
Shimano Deore Shadow+
CRANKSET:
Tern GSD custom, forged 6061-AL DH crankarm
CASSETTE/FREEWHEEL:
Shimano 11-36T, 10 spd
BOTTOM BRACKET:
Motor integrated
CHAIN:
10 spd, DHT for eBike, GST corrosion resistant coating
PEDALS:
Urban with non-slip surface, sealed bearings
SHIFTER CABLE & HOUSING:
Jagwire LEX-SL, slick treatment, alloy ferrules

MOTOR:
Bosch Performance, 36 V/250 W, max speed 25 kph (EU); max speed 20 mph (US), max torque 63 Nm
BATTERY:
Bosch Dual Battery system, 400wh/500wh/900wh
DISPLAY:
Bosch Purion, 4 mode selectable, walk assist
RANGE:
400 Wh: 50-110 km (31-68 mi), 500 Wh: 60-140 km (37-87 mi), 900 Wh: 110-250 km (68-155 mi)
CHARGER:
Bosch Standard Charger

BELL:
Aluminum
CHAINGUARD:
SKS Chainblade
KICKSTAND:
Heavy-duty double stand, 80 kg capacity
LUGGAGE SOCKET:
Combo Mount
FRONT LIGHT:
Tern Valo Direct, integrated, 41 lux/150 lumens
REAR LIGHT:
Herrmans H-Trace, for eBike
FENDERS:
SplashGuard, stainless hardware
RACK(S):
Frame integrated, heavy duty design