TERN OROX S12 (29")



TERN OROX S12 (29")


Travel back in time as you trace railroad remnants hidden in the woods to mining ghost towns, or journey through diverse landscapes that span from lush green valleys to the rugged pinnacles of desert badlands. With incredible range and power, Orox lets you freely go on adventures unlike any other

Equipped with an ultra-high capacity Bosch PowerPack and dual-battery compatible for double the juice, Orox truly frees you from the iron grip of range anxiety. Ride longer and head deeper into the backcountry with immense range at your disposal. There’s no holding back now.

Up to 161 km with Single battery Up to 322 km Optional dual battery

More than just a convenient cache for small essentials, the Frame Pack encases the forward battery to effectively insulate it against wind-chill and freezing temperatures. With the cold kept at bay, your battery stays warm and holds charge better.

Day or night, come rain or shine—Orox is ready to roll when the mood strikes. Ride it year-round, through the dog days of summer and into the arctic embrace of winter. There’s no better way to experience the liberating outdoors than on a two-wheeler you can depend on.

Frame-Integrated TowBar
Turn Orox into a tow truck to bring everything you need, and more. The burly frame-integrated TowBar™ works with most trailer hitches so you can easily link a passenger, cargo, or pet trailer to your bike. Add the Tail Hitch XL to shift the trailer further back to make room for loaded panniers, or combine it with our Bike Tow Kit to bring an extra bike.

What makes it an S12?

  • Shimano Deore XT 1 x 12-speed groupset for fast and precise shifting 
  • 29" Schwalbe Johnny Watts all-terrain tires

Orox highlights

  • Hill-attacking Bosch Performance Line CX motor provides up to 85 Nm of torque and 340% support 
  • Dual-battery system draws from up to two batteries for ultra-long range
  • Bosch Smart System with ConnectModule lets you access and control advanced functions like eBike Alarm and eBike Tracking
  • Splash and dust-proof Kiox 300 color display with LED remote for intuitive control
  • Powerful and responsive Magura 4-piston hydraulic brakes 
  • EFBE-certified safe and reliable for massive hauls, with a Max Gross Vehicle Weight of 210 kg (462 lb) on pavement and 180 kg (397 lb) off-road
  • Two frame sizes to fit riders 155 - 195 cm (5’1” - 6’5”) tall, weighing up to 130 kg (286 lb)
SPEEDS:1 x 12

WEIGHT:M: 34.4 kg (75.8 lb)

GEAR INCHES:18" - 95" (1.48 - 7.54 m)


DISTANCE: SEATPOST TO HANDLEBAR:M: 61 - 66 cm (24 - 26 in) ; L: 67 - 73 cm (26.4 - 28.7 in)

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

FORK:Atlas X, butted chromoly steel, EFBE tested and approved

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


SADDLE:Ergon SM, E-Mountain Sport, CrMo Rail

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


FRONT BRAKE:Magura MT5, 4-piston hydraulic disc, 203 mm rotor

REAR BRAKE:Magura MT5, 4-piston hydraulic disc, 203 mm rotor

BRAKE LEVERS:Magura MT5, hydraulic

BRAKE CABLE & HOUSING:Magura, hydraulic

FRONT WHEEL:Tern Atlas X, ultra-heavy duty cargo construction, 29"

REAR WHEEL: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

SPOKES & NIPPLES:Stainless steel

RIMS:Tern Atlas X, custom doublewall construction

TIRES:Schwalbe Johnny Watts 29" x 2.6"

SHIFTER(S):Shimano Deore, 1 x 12 spd

REAR DERAILLEUR:Shimano Deore XT Shadow+

CRANKSET:Tern Orox custom

CASSETTE/FREEWHEEL:Shimano 10-51T, 12 spd

BOTTOM BRACKET:Motor integrated

CHAIN:KMC 12 spd, for eBike, EPT corrosion resistant coating

PEDALS:MTB, non-slip

SHIFTER CABLE & HOUSING:Jagwire LEX-SL, slick treatment, alloy ferrules

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

RANGE:725 Wh: 84 - 146 km (52 - 91 mi); 1450 Wh: 168 - 292 km (104 - 181 mi)

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

BELL:Pitch Plus, brass

TOOL:Thru-axle lever, 4/5 mm, Torx 2.5 mm

CHAINGUARD:Custom Bash Guard

PAINT PROTECTION:ToughShield film on top and downtube, self-healing

KICKSTAND:Atlas Kickstand XL Cargo ready

FRONT LIGHT:Ignis Headlight, Ultra wide 700 lumens, Hi/Lo Beam

REAR LIGHT:LED w/ G-Sensed Brake Light

FENDERS:Aluminum, heavy duty construction, oversize stays, 29"

RACK(S):Atlas X, 100 kg (220 lb) capacity
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