Tern · Longtail
GSD S10
The compact longtail that carries two kids and parks like a normal bike.
- Payload
- 100 kg
- Torque
- 85 Nm
- Battery
- 500 Wh
from €6,100
Tern · Longtail
Tern Orox S12
The off-road longtail for gravel, forest tracks and long trips with gear.
- Payload
- 100 kg
- Max. total weight
- 210 kg
- Torque
- 85 Nm
- Battery
- 800 Wh
- Estimated range
- 64 km
- Bike weight
- 34.4 kg
from €6,100
Current shop price · checked 5 days ago
Our verdict
The Orox S12 is a longtail built for rough ground: big 29-inch wheels, a CX motor and an 800 Wh battery for long days. For pure city use it is larger and wider than it needs to be.
Pros
- 29-inch tyres and suspension fork for gravel and trails
- 800 Wh battery for long days
- Rear rack rated for 100 kg, two children
- Strong 85 Nm motor pulls full loads up steep hills
- Large 800 Wh battery for long days
Cons
- 2.14 m long and 82 cm wide, needs space
- Derailleur needs regular care off-road
- Overkill for pure city use
- Derailleur drivetrain wears faster under cargo loads
Ideal for…
- Bikepacking and trips with gear or kids off the tarmac
- Rural areas with gravel roads and hills
- Families carrying two or three kids
- Couriers and commercial deliveries
- Riding with a dog
Not recommended if…
- Small flats without ground-level storage
- Short trips on smooth city streets
Technical specifications
Motor & battery
- Motor
- Bosch Performance Line CX
- Torque
- 85 Nm
- Rated power
- 250 W
- Battery
- 800 Wh
- Estimated range
- 64 km
Capacity & weight
- Max. total weight
- 210 kg
- Payload
- 100 kg
- Bike weight
- 34.4 kg
- Max. children
- 2
Dimensions
- Length
- 2,140 mm
- Width
- 820 mm
- Height
- 1,075 mm
- Wheel size (front / rear)
- 29″
Components
- Frame type
- Longtail
- Drive
- Chain
- Shifting
- Derailleur · Shimano Deore 12-speed
- Brakes
- Magura MT5 hydraulic disc brakes
- Suspension
- Front and rear suspension
- Model year
- 2025
AllCargo estimate: 80 kg rider, 40 kg cargo, rolling terrain, tour mode.
Range calculator
Estimate the range of the Tern Orox S12 on a single charge.
Estimated range
km
Estimate based on battery capacity and total system weight. Cold weather, tyre pressure and stop-and-go traffic reduce range.
Dimensions & storage
Will the Tern Orox S12 fit through your door, into the lift or your parking space?
-
Standard door (80 cm) Too big
Width 820 mm · 20 mm too big
-
Small lift (1.4 m cabin) Too big
Length 2,140 mm · 740 mm too big
-
Bike parking space (2 m) Too big
Length 2,140 mm · 140 mm too big
Manufacturer dimensions. Tipping or standing the bike upright can help in tight spaces; measure your own door and lift before buying.
Expert overview
AllCargo editorial team ·
Written by the AllCargo editorial team from manufacturer specifications and owner feedback. We did not test-ride this bike. How we review →
Who it is for
The Tern Orox S12 is for riders who want to carry kids, camping gear or tools beyond the tarmac. It rolls on 29-inch tyres, the rear rack takes 100 kg and the bike is rated for 210 kg on the road and 180 kg off-road. Two children fit on the back with suitable seats.
Riding and everyday use
The Bosch Performance Line CX with 85 Nm and the 12-speed Shimano Deore drivetrain give a wide gear range for steep, loose climbs. The 800 Wh battery is one of the largest in the class, so around 60 km with a load is realistic, and more with a second battery. At 34.4 kg it is reasonably light for its size, and Magura MT5 brakes keep it under control on descents.
Before you buy
The Orox is 2.14 m long and 82 cm wide at the handlebar, so it needs a ground-level parking spot and will not fit through narrow bike barriers easily. If you ride mostly in town, the shorter Tern GSD is more practical.
Frequently asked questions
Can the Tern Orox carry children?
Yes, two children on the rear rack with suitable seats. The rack is rated for 100 kg and the bike for 210 kg on the road, including the rider.
Is the Tern Orox suitable for off-road riding?
Yes, that is what it is built for. Tern allows 180 kg total weight off-road, and the 29-inch tyres, suspension fork and CX motor handle gravel and forest tracks.
What range does the Orox S12 get?
With the 800 Wh battery, around 60 km with a load on mixed terrain is realistic. A second battery can roughly double that for long trips.
How many children can the Tern Orox S12 carry?
The Tern Orox S12 can carry up to 2 children, depending on the seats and accessories fitted.
What range does the Tern Orox S12 have?
With its 800 Wh battery we estimate about 64 km per charge with an 80 kg rider and 40 kg of cargo on rolling terrain. Use the range calculator above for your own scenario.
How much does the Tern Orox S12 weigh and how much can it carry?
The bike weighs about 34.4 kg and has a maximum permitted total weight (rider, cargo and bike) of 210 kg.
How much does the Tern Orox S12 cost?
Prices start at €6,100. The final price depends on configuration, battery size and accessories.
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