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Tern Orox S12

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Explore New Ground

The Orox S12 isn’t just another e-bike—it’s your ticket to the backcountry, the commute, the school run, and beyond. With trail-ready components, the most powerful Bosch motor, and off-road hauling capability, it’s built to do what most e-bikes won’t dare.

Why You’ll Love It

Built to Haul
With a carry capacity of 210 kg on-road and 180 kg off-road, the Orox is ready to carry serious loads—groceries, gear, even a kid or two—no sweat.

Go Far, Really Far
Powered by the Bosch Performance Line CX motor, the Orox S12 delivers up to 100 Nm of torque assist up to 32 kph, helping you crush climbs and go deeper into the unknown. The 725 Wh battery gives up to 146 km of range, and with the dual-battery system, you can reach up to 292 km.

All-Terrain Mastery
From urban streets to trails, 27.5" Johnny Watts options give you traction and comfort on any surface.

Smart and Secure
The Bosch Smart System with ConnectModule lets you track your bike, trigger alarms, and control key features via the Bosch Flow app—12 months free with your Orox.

Ride Quality Meets Precision
The Shimano Deore XT 1x12 drivetrain delivers fast, accurate shifting, while Magura MT5 4-piston hydraulic brakes offer unmatched stopping power, even when fully loaded.


Orox S12 Highlights

  • Bosch Performance Line CX motor with 100 Nm torque

  • Bosch Kiox 300 color display + LED remote

  • Bosch dual-battery ready (725 Wh base, 1450 Wh max)

  • Shimano Deore XT 1x12 groupset

  • 27.5" ultra-wide tires with fender and light clearance

  • Magura 4-piston hydraulic disc brakes

  • Heavy-duty Atlas X frame and components

  • Integrated anti-theft GPS and alarm

  • Fits riders 155–185 cm tall, up to 130 kg


What the Experts Say

“A true SUV of the e-bike world—rugged, capable, and smart.”
Electric Bike Report
Read full review

“Confidence-inspiring and buttery smooth, even on dirt trails.”
Cargo Bike Life
Read full review

“One of the most versatile adventure cargo bikes on the market.”
Bikerumor
Read full review


For a comprehensive overview of the Tern Orox S12's capabilities, check out the video below:

General Info

• Speeds: 1 × 12 drivetrain

• Weight: M: 37.1 kg (81.8 lb)

• Gear Range: 18" – 95" (1.48 – 7.54 m)

• Frame Sizes: M, L

• Seatpost to Handlebar: M: 61 – 66 cm (24 – 26 in); L: 67 – 73 cm (26.4 – 28.7 in)

• Saddle to Pedal: M: 71 – 99 cm (28 – 39 in); L: 76.5 – 104.5 cm (30.1 – 41.1 in)

• Suggested Rider Height: M: 155 – 185 cm (61 – 72.8 in); L: 165 – 195 cm (65 – 76.8 in)

• Max Gross Vehicle Weight: On-road: 210 kg (463 lb); Off-road: 180 kg (396.8 lb)

• Max Rider Weight: 130 kg (286.6 lb)

Frame & Fork

• Frame: Tern Orox, 6061-AL, EFBE tested and approved

• Fork: Atlas X, butted chromoly steel, EFBE tested and approved

Cockpit

• Stem: Level Nine — 45 mm (M), 65 mm (L), Syntace VR-3 certified

• Headset: FSA, 1.5", angular contact bearings

• Handlebar: Level Nine AL-7050, 800 mm riser, eMTB approved

• Grips: Ergon ergonomic

• Saddle: Ergon SM E-Mountain Sport with CrMo rails

• Seatpost: Syntace P6 AL7050, 34.9 mm, VR-3 SP-approved

• Seatpost Clamp: Tern Collar

Brakes

• Front: Magura MT5, 4-piston hydraulic disc, 203 mm rotor

• Rear: Magura MT5, 4-piston hydraulic disc, 203 mm rotor

• Levers: Magura MT5 hydraulic

Wheels & Tyres

• Front Wheel: Tern Atlas X, ultra-heavy duty cargo construction, 27.5"

• Rear Wheel: Tern Atlas X, ultra-heavy duty cargo construction, 27.5"

• Front Hub: Tern Atlas X, CNC body, disc cooling fins, Boost Thru-Axle with integrated Tern Tool (5 mm hex/T20 Torx)

• Rear Hub: Tern Atlas X, CNC body, disc cooling fins, Boost Thru-Axle, Syntace X-12 standard

• Rims: Tern Atlas X custom double-wall construction

• Spokes: Stainless steel

• Tyres: Vee Snow Ball 27.5 × 4 or Schwalbe Johnny Watts 27.5 × 4

Transmission

• Shifters: Shimano Deore 1 × 12 trigger

• Rear Derailleur: Shimano Deore XT Shadow+

• Cassette: Shimano 10–51T, 12-speed

• Crankset: Tern Orox custom

• Chain: KMC 12-speed eBike, EPT anti-corrosion

• Pedals: MTB non-slip

E-System

• Motor: Bosch Performance CX, 85 Nm torque, max speed 32 km/h

• Battery: 725 Wh or 800 Wh, dual-battery ready

• Display: Bosch Kiox 300 with LED remote + electronic bike lock

• Range:


  • 725 Wh: 84 – 146 km (52 – 91 mi)

  • 800 Wh: 93 – 161 km (58 – 100 mi)

  • 1450 Wh: 168 – 292 km (104 – 181 mi)

  • 1600 Wh: 185 – 322 km (115 – 200 mi)

    • Charger: 4A, 100–240V

    • Connect Module: Bosch GPS/GSM anti-theft with Flow+ app (12-month trial included)

Accessories & Extras

• Bell: Pitch Plus brass

• Tool: Thru-axle lever (4/5 mm, Torx 2.5 mm)

• Chainguard: Custom bash guard

• Paint Protection: ToughShield self-healing film on top and downtube

• Kickstand: Atlas Kickstand XL, cargo-ready

• Front Light: Ignis headlight, ultra-wide 700 lumens with Hi/Lo beam

• Rear Light: LED with G-sensed brake light

• Fenders: Aluminium, heavy duty, oversize stays, 27.5"

• Rack: Atlas X rear rack, 100 kg (220 lb) capacity

How to Choose the Right Cargo Bike

When you chat with us - whether in the shop or online - we’ll
usually start by asking two simple questions:

Where do you ride? Do you tackle a big hill, cruise a long flat commute, or a bit of both?

What do you carry? Is it cargo, kids, or a mix of everything?

Big hills usually mean more power and stronger brakes. Long commutes might call for a high-speed option with a larger battery. Carrying kids or heavier gear means looking at stability and the right accessories.

It can feel overwhelming with so many models out there, but that also means there’s a perfect match for your lifestyle. We’ll help you find it - and you can take an extended test ride to make sure it really fits into your day-to-day.

If you want to explore yourself on our website, go to our cargo bike page and use the filters to narrow down your options based on how you answered the questions above.

Most longtail cargo bikes are set up to carry two kids on the back, like the Tern GSD or Specialized Porto. The popular Yuba Spicy Curry can carry three!

Front-loading cargo bikes can fit two or three passengers up front. Each bike can be customised with heaps of accessories -seats, footrests, baskets, rain covers - so we’ll help match the setup to your crew.

Non-electric cargo bikes are fine for flat, short trips with lighter loads. But if you’ve got hills, longer distances, or wriggly kids on board, an e-cargo bike will change your life. The motor takes the sting out of climbs, makes heavy loads manageable, and opens up bigger commutes without breaking a sweat.

Most e-cargo bikes will happily take you 40–80 km on a single charge. Your range depends on the terrain, assist level, and how much you’re carrying. Some models run dual batteries, which basically doubles your distance - handy for all-day missions.

Absolutely.

Cargo bikes are designed with families in mind. Add the right accessories - child seats, harnesses, rain covers - and they’re one of the safest, comfiest ways to get kids around town.

And the best part? Kids love the ride.

For a lot of families, yes.

Cargo bikes take care of school runs, shopping, work commutes, even weekend adventures. Many of our customers have sold their second cars and never looked back - some have even sold both! You can haul kids, groceries, pets, or gear without the fuel bills or parking headaches. Some households even call the cargo bike their “first car,” keeping the actual car for long trips and holidays.