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2026 Tern

Orox S12 (29")

A 29″ aluminum frame long tail cargo e-bike with upper mid-range components and magura mt5 hydraulic disc brakes.
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Manufacturer Price

A$9,995($7,128)
Weight75.8 lbs  
FrameAluminum
SuspensionRigid
ForkSteel
Wheels29″ Aluminum
Drivetrain1 × 12
GroupsetXT, Deore
MotorBosch 600W 85Nm mid-drive
BatteryBosch 725Wh
BrakesMagura MT5 Hydraulic Disc
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Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

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Price History
Reviews
NSMB
Tern Orox S12 Cargo Bike Reviewed

Oct 2025

Tern's Orox S12 is a monster cargo bike on steroids for the right family to ditch their cars for; but are you one of those families?

Read Review

Electric Bike Report
Tern Orox S12 Review | Pack it In, Pack it Out, Pack it ALL – Electric Bike Report

Aug 2024 · John S. Bozick

Raw Power, Refined Intelligence: How the Tern Orox Combines Strength and Smarts When a brand introduces a beefy new e-cargo bike under the marketing slogan "Go Anywhere, Go Anytime, Bring Anything," it definitely catches my attention. After all, living in Southern Utah gives me unbridled access to some of the most jaw-droppingly epic landscapes the

Highs
  • It’s a Tank! With a beefy frame and long wheelbase, this bike looks like it could be dropped into a warzone and hold its own. It’s just missing a mounted .50 cal.

  • The Bosch CX Mid-Drive motor is one of the smoothest and most natural motors we have tested.

  • Bring the kitchen sink thanks to the 380 lb max payload, racks rated for 220 lbs, and seemingly endless cargo options.

  • Very nice components like Shimano Deore XT 1×12 and Magura MT5 4-piston hydraulic brakes.

  • One of the best warranties in the game with five years of coverage on frame and parts plus an optional enrollment in Tern Care for a full 10-year warranty.

  • Versatility is the name of the game, as you can kit up the Orox to be an off-grid explorer or the family wagon around town.

  • Double the Fun! Owners can opt for the dual battery kits, which extend the range to a potential 181 miles on a single charge!

  • Fits a wide range of riders from 5’1″ to 6′ 5″ between the two available frame sizes.

  • There are accessories for days! Child seating, pet carriers, pannier bags, and everything in between—if you can think it, you can likely do it!

Lows
  • It’s sheer mass. Weighing 83 lbs and having a long wheelbase, it’s a tough bike to manage when not riding.

  • Price: The base model starts at $6500, and you’re likely getting several accessories added on top. This likely won’t be within the budget for a lot of people.

Read Review

BikeRadar
Tern Orox R14 review

Feb 2024 · Warren Rossiter

50% utility cargo bike, 50% off-road fat bike, 100% fun

Highs
  • Brilliant off road prowess

  • Huge range

  • Comfortable and fun

Lows
  • Huge footprint

  • Tricky wheel removal

  • Gear shift quirks

Read Review

Downtown
The new Tern Orox R14 2024 in review – Cargo bike meets off-road capability

Feb 2024 · Sebastian Dirscherl

The Tern Orox R14 promises intuitive handling and plenty of storage space. But does this cargo bike actually impress in our practical test?

Highs
  • Practical saddlebag with plenty of storage space

  • For a cargo bike, it rides very conventionally

  • Can be stored upright to save space when not in use

Lows
  • Very wide handlebar

  • No dropper post

Read Review

Specs
Build
Frame

Tern Orox, 6061-AL, patented design, EFBE tested and approved

ColorsSatin Highland Yellow; Satin Pine

Fork

Atlas X, butted chromoly steel, EFBE tested and approved

Bottom Bracket

Motor integrated

Headset

FSA, 1.5", angular contact bearings

Stem

Level Nine, 45 mm (M), 65 mm (L), Syntace VR-3 certified

Handlebar

Level Nine, AL-7050, 800 mm, riser, eMTB approved

Saddle

Ergon SM, E-Mountain Sport, CrMo Rail

Seatpost

Syntace P6 AL7050, 34.9 mm, Syntace VR-3 SP-approved

TypeRigid

Pedals

MTB, non-slip

Groupset
Rear Derailleur

Shimano Deore XT Shadow+

Crank

Tern Orox custom

Shifters

Shimano Deore, 1 x 12 spd

Cassette

Shimano 10-51T, 12 spd

Chain

KMC 12 spd, for eBike, EPT corrosion resistant coating

Chain Guide

Custom Bash Guard

Brakes

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

TypeMagura MT5 Hydraulic Disc

Brake Levers

Magura MT5, hydraulic

Wheels
Rims

Front: Tern Atlas X, ultra-heavy duty cargo construction, 29", Rear: Tern Atlas X, ultra-heavy duty cargo construction, 29"

Front Hub

Tern Atlas X, CNC body, disc cooling fins, Boost Thru-Axle, integrated Tern Tool with 5mm hex/T20 Torx

Rear Hub

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

Tires

Schwalbe Johnny Watts 29" x 2.6"

Electric Components
Motor

Bosch Performance CX, max speed 25 kph (EU); max speed 20 mph (US)

Battery

725 Wh, Bosch Dual Battery pack ready

Display

Bosch Kiox 300 w/ LED remote, electronic bike lock

Charger

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

Accessories
Lights

Front: Ignis Headlight, Ultra wide 700 lumens, Hi/Lo Beam, Rear: LED w/ G-Sensed Brake Light

Fenders

Aluminum, heavy duty construction, oversize stays, 29"

Racks

Atlas X, 100 kg (220 lb) capacity

Bell

Pitch Plus, brass

Rider Notes
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First added March 28

Last updated April 4