Tern GSD S10 LX

Still Small. Even More Useful.

With a 200 kg (440 lb) Maximum Gross Vehicle Weight, the GSD is ready to replace your car. It’ll let you carry two kids plus groceries, or a whole lot of cargo—but it’s the same length as a regular bike. Built-in dual-battery technology lets you ride all day, while space-saving features like FlatFold and Vertical Parking make the GSD incredibly easy to own and use.

The LX is the same as the S10 but with a 500wh battery as standard, a Thudbuster Suspension Seat Post ( $350 RRP ) and a much brighter front light. We offer the LX model with a 400wh or 500wh option. Take your pick.

 One Size Fits Most

The GSD has an adjustable cockpit that resizes in seconds and without tools to fit riders 150 – 195 cm tall (4’11” – 6’5”), so you can easily share it with your family. The updated frame geometry with a slacker seat tube angle and higher handlebars also means the GSD doesn’t just fit—it’s more comfortable too.

 Cargo-Ready

The GSD is made to fit your life, including all your stuff. Our ecosystem of accessories includes a wide range of cargo-carrying designed to keep your loads secure and stable for wobble-free hauling. You may not have thought of using a bike to pick up groceries, home improvement supplies, or plants for your garden—but now you will.

Easy to Manage

The GSD’s unique geometry makes for super stable riding, no matter what you’re hauling (or how wiggly your kids are). The low center of gravity lets even text-smer riders confidently manage heavy loads, and the step-thru frame makes getting on and off the bike a breeze. Plus, we’ve made it easier for the rider’s feet to reach the ground at stops.

Year-Round Riding

Keeping your kids dry and cozy is the key to happier rides and fewer complaints. The new Clubhouse Fort transforms the GSD into an all-weather solution to carry young passengers all year round.

LEARN MORE

 Rock-Solid

Loading heavy cargo or kids on and off a bike can be tricky business, so we created the Atlas Lockstand. It’s an unbelievably strong and stable kickstand that automatically locks into place when engaged. When you’re ready to go, just press the Remote Unlock lever and roll forward.

 Easy to Transport

We think the GSD will help you leave your car behind more often than not. Still, there are times when using a car and a GSD together is the best solution. The GSD packs down to one third of its volume in seconds. Stick a GSD (or two!) in the back of a minivan or small SUV, no heavy-duty rack required.

 Small-Space Friendly

A regular bike takes up a lot of floor space and can be hard to store in a text-sm living space (never mind getting it in and out of the elevator). We solved this problem by designing the GSD to park vertically, so it takes up about as much space as a potted plant—perfect for city apartments and elevators.

Stronger, Stiffer Frame

The GSD has always been super strong, but we’ve made it even beefier for a better ride. The added stiffness prevents side-to-side motion, even when heavily loaded.

 Atlas Wheels

The GSD’s wheels may be text-sm, but they’re strong enough to carry big. Custom-designed to withstand the 200 kg max gross vehicle weight of the GSD.

Frame-Integrated Rack

The GSD has a max gross vehicle weight of 200 kg, and the rear rack can carry up to 100 kg. Whether it’s an adult passenger, two weeks worth of groceries, or stuff for a big DIY project—the GSD carries virtually anything.

 Dedicated Trailer Mount

Easy to use, very secure, and optimized to prevent trailer tilt. Compatible with Thule, Burley, and Weber trailers, no adapters needed.

 Integrated Lower Decks

The rugged Integrated Lower Decks offer built-in support for cargo and passengers’ feet. Got a truly oversized load? Add the Sidekick Wide Decks for extra room and even more load capacity.

 Ecosystem of Accessories

Make the most of the frame-integrated rear rack’s enormous strength and the robust Combo Mount for front cargo accessories. Whether you need to carry passengers or cargo, there’s something for every situation.

 Easy-Step Frame Design

Updated frame geometry makes the GSD comfier for riders of all sizes. A slacker seat tube angle and higher handlebars create a better-fitting cockpit and a more upright riding position. Plus, it’s now easier for riders’ feet to reach the ground at stops.

 Custom Suspension Fork

We built a special suspension fork to add comfort and control while safely handling the GSD’s massive 200 kg MGVW.

 Suspension Seatpost

Cane Creek Thudbuster suspension seatpost for an extra-cushy ride. Tool-free elastomer adjustment makes it easy for riders of different sizes to share the bike.

 Andros Stem

The unique Andros Stem lets you change the height and angle of the handlebars in seconds and without tools, creating a comfy riding position.

 RearStop Brake Light

Let drivers know to give you space when you’re stopping or slowing down. Always on, day or night, with enhanced side visibility.

 Ignis Headlight

Riding home after dark or in bad weather? No worries. The 700-lumen front light provides extra visibility with a brighter light and a wider beam. A one-touch high/low beam puts even more light at your fingertips. Equipped on GSDs with the LX package.

Full Chainguard

The chainguard helps you stay tidy (no pant-rolling required) and prevents long skirts and loose pants from getting caught in the chain or belt.

 Integrated Wheel Guard

A full-coverage rear wheel guard protects the rider and passengers from splashes of muddy water and prevents clothes and shoelaces from being caught in the wheel.

TECHNICAL DETAILS

SPEEDS:

1 x 10

WEIGHT:

33.58 kg (74 lb)

GEAR INCHES:

26″ – 99″ (2.08 – 7.91 m)

FOLDING SIZE:

176 × 40.5 × 87 cm (69.3 × 15.9 × 34.3 in)

FOLDING TIME:

5 sec

FRAME SIZES:

One size

DISTANCE: SEATPOST TO HANDLEBAR:

49 – 59 cm (19.3 – 23.2 in)

DISTANCE: SADDLE TO PEDAL:

69 – 105 cm (27.2 – 41.3 in)

SUGGESTED RIDER HEIGHT:

150 – 195 cm (59.1 – 76.8 in)

MAX GROSS VEHICLE WEIGHT:

200 kg (440.9 lb)

MAX RIDER WEIGHT:

120 kg (264.6 lb)

FRAME:

Tern GSD, 6061-AL, patented MultiTruss design, EFBE Tri-Test approved: 200 kg

FORK:

Suntour custom for Tern, 1.5″ tapered Chromoly steerer, 32 mm stanchions, Thru-axle, 70 mm travel, EFBE approved: 200 kg

COCKPIT

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, 1.5″, angular contact bearings, Physis integrated

HANDLEBAR:

Tern Sweep, 6061-AL, Tern Andros adapted

GRIPS/BAR TAPE:

Ergon

SADDLE:

Tern GSD by Velo, with rear handle

SEATPOST:

Cane Creek Thudbuster G4, Tern Telescope, 34.9/30.9 mm

SEATPOST CLAMP:

Tern Collar, 6061-AL, 2pc

FRONT BRAKE:

Magura MT5, 4-piston hydraulic disc, 180 mm rotor, Sport pads

REAR BRAKE:

Magura MT5, 4-piston hydraulic disc, 180 mm rotor, Sport pads

BRAKE LEVERS:

Magura MT5 e-stop, hydraulic, with brake sensor

BRAKE CABLE & HOUSING:

Magura, hydraulic

FRONT WHEEL:

Tern Atlas, heavy duty cargo wheel

REAR WHEEL:

Tern Atlas, heavy duty cargo wheel

FRONT HUB:

Tern Atlas, Boost Thru-Axle, Cargo-optimized design, sealed cartridge bearing

REAR HUB:

Tern Atlas, Boost Thru-Axle, Syntace X-12 standard, Cargo-optimized design

SPOKES AND NIPPLES:

Stainless steel, 13G

RIMS:

Tern Atlas, ultra wide 36 mm, dual reinforced joint

TIRES:

F: Schwalbe Big Ben Plus, 55-406, Green Guard puncture protection, Reflex R: Tern x Schwalbe Super Moto-X, 62-406, Green Guard puncture protection, Reflex

TRANSMISSION

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 Cargo Line, 400% Assist, 85 Nm Torque, max speed 25 kph (EU); max speed 20 mph (US)

BATTERY:

Bosch Dual Battery system, 500 Wh/1000 Wh

DISPLAY:

Bosch Purion

RANGE:

500 Wh: 52-105 km (32-65 mi); 1000 Wh: 102-206 km (63-128 mi)

CHARGER:

220V, 4A (EU); 100-240V, 4A (US)

BELL:

Pitch Plus, brass

CHAINGUARD:

Tern Custom, full chain cover

KICKSTAND:

Atlas Lockstand, w/ remote unlock, patented technology

LUGGAGE SOCKET:

Combo Mount

FRONT LIGHT:

Ignis Headlight, Ultra wide 700 lumens, Hi/Lo Beam

REAR LIGHT:

RearStop Brake Light, Always on brake light

FENDERS:

Integrated Wheel Guard, AL6061, w/ Side Skirt

RACK(S):

Frame integrated, heavy duty design; Max load weight: 100 kg (220 lb)

ACCESSORY:

ABUS, keyed-alike with Bosch battery