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tern GSD S10 E-City Bike 20" blue (2019)

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tern GSD S10 E-City Bike 20" blue
tern GSD S10 E-City Bike 20" silver
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Product Description

Please note: all of our bike models come with an EU standard brake setup. This will need to be reversed to comply with UK cycling standards.

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 ebike. 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 ebike, so it fits anywhere a standard ebike can. But there are lots of places a standard ebike 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.

Carries the Family
With room for up to two Thule Yepp Maxi child seats, plus grocery space to spare, the GSD lets you ditch the minivan. The low step-thru frame makes getting on and off much safer, and with an extra low center of gravity, the GSD is stable and steady.

Fits the Whole Family Too
Minivans don’t come in S, M, L & XL to fit the driver, so why do bicycles? The GSD is designed to be shared by a family. It adjusts to fit mom, dad or the kids—any rider from 150 – 195 cm. Best of all, thanks to Tern’s adjustable stem, and compact geometry, adjusting the bike only takes seconds.

Carry More
The GSD boasts cargo-bike capacity, despite its city-bike footprint—up to 180 kg (400 lbs.) including rider. Build it up with Cargo Hold Panniers and the Shortbed and Transporteur racks, to carry industrial strength Eurocrates, a week of groceries or a family picnic plus the kitchen sink.

The Tern GSD is a terrific bike for everyday life. A compact miracle on small wheels.
- ElektroRAD, leading German ebike publication


  • Powerful Performance Line drive from Bosch
  • Durable 500 Wh battery
  • Bosch Purion Display with 4 support levels
  • Hydraulic Magura MT5 disc brakes
  • Schwalbe SUPER Moto-X Tyres
  • Shimano Deore 1x10 speed drivetrain
  • Bags on board as standard
  • As long as a normal bicycle
  • Maximum permissible weight of 180 kg including rider
  • pedals included in delivery
Special Features

Bosch Performance Line

On extended sports tours, on the way to work or cruising in nature - the Performance Line turns e-bikers into discoverers and adventurers. The powerful propulsion provides the required power at any time. To conclude: Riders get the perfect support in every situation to provide even more fun in the saddle - up to 25 km / h with the Drive Unit Performance Cruise or up to 45 km / h with the Speed variant.


How many miles will my battery last?  
Can I get 50 miles from one battery charge or even 120? For those interested in buying an e-bike, this is a very important question. Manufacturers try to be as realistic as they can about possible ranges your e-bike may manage on one complete battery charge. In practice, however, the maximum range depends on many different factors.  As well as the type of motor you have, factors include the energy content (400 or 500 Wh), handling and age of the battery. However, the rider's weight, sitting position, riding style (starting frequency, cadence) and selected support levels (Eco, Tour, Sport, Turbo) all greatly influence the range. Last but not least, the track profile (uphill or flat), the ground (road or terrain), wind (headwind, tailwind) and even tyre profile effect distances possible. This makes it extremely difficult to provide precise and reliable information.
E-Bike 25km/h  
Intended use
E-cargo bike  
due to STVZO
Wheel Size
20  Inch
Weight (approx.)
26.5  approx. kg
Total weight
180  kg
Scope of Delivery
Includes pedals: Yes  
Damper brand: Without shock
System: Trapeze
Material type: Aluminium
further specifications: Alu 7005
Brand: Bosch
Model: Performance 
Type: Bottom bracket motor
Performance: 250 Watt
Model: Bosch Power Pack
Type: Lithium-Ion
energy storage: 500 Wh
Performance: 36 / 13,88 Volt/Ah
battery mounting: Frame battery
BOSCH "Purion", 4-step, pushing aid  
Type: Bosch quick charger 2A  
Range: 50 -110 km
System: Rigid fork
Brand: tern
Type: Alu 6061, Tapered
Shifting Components
Drivetrain type: Derailleur
Gear No.: 10
Brand: Shimano
Type: Deore Shadow
Shift Levers
Brand: Shimano  
Type: GSD Custom  
Bottom Bracket
Brand: Bosch  
Brand: Shimano  
Front Brakes
Brand: Magura
Type: MT5
Brake system: Hydraulic disc brake
Rear Brakes
Brand: Magura
Type: MT5
Brake system: Hydraulic disc brake
Brake Levers
Brand: Magura
Type: MT5
Brand: tern
Type: 27° back-sweep
Material: Aluminium
ERGON "GC10"  
Brand: tern
Type: PHYSIS 3D Handlebar / Stem Unit GEN. 2 / "Andros" GEN. 2
System: Patent post
Type: TERN "Telescope"
Material: Aluminium
Front Hub
Brand: tern
Type: Atlas
Rear Hub
Brand: tern
Type: Atlas
Brand: tern
Type: Atlas
Material: Aluminium
System: Hollow chamber
2,0 mm / 2,34 mm ED, Niro  
Front Tyre
Brand: Schwalbe
Type: SUPER Moto-X Custom, 62-406
Special features: Reflex
Rear Tyre
Brand: Schwalbe
Type: SUPER Moto-X Custom, 62-406
Special features: Reflex
System: two-leg stand  
Material: Plastic  
System: Battery-operated lighting  
Front Light
Brand: tern
System: LED
Type: Valo II", LED, 41 lux
Rear Light
Brand: Hermanns
Type: H-Trace
Model year
Product number
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