Specialized Turbo Tero 4.0 Step Through EQ 2026

You'll need a bigger map: The Turbo Tero is an e-bike that can go anywhere, on any terrain, while allowing you to carry everything you need. With the Turbo Tero, you can enjoy new adventures with smooth assistance and comfortable suspension. If you're looking for an e-bike for cycle touring that can carry luggage, the Turbo Tero is the right choice, thanks to its off-road wheels and tyres, powerful hydraulic disc brakes and suspension fork.

POWERFUL
It's still you, just faster. The Full Power Turbo System multiplies your pedalling effort four times over, in a natural way. Climbs will no longer be a challenge.

COMFORTABLE
The semi-upright position promotes comfort and control.

TURBO
Turbo technology is at the heart of the Turbo Tero. This advanced, integrated system provides natural, silent assistance, has anti-theft features, a multifunctional display and much more.

RANGE
You can cycle up to 140 km on a single charge.

SECURITY
With a simple action, you can lock the motor, which no one can reactivate without your personal PIN. For added security, lock the battery in the bike or take it with you.

Features

• Full Power 2.0 Turbo motor and 710 Wh battery: integrated into the aluminium frame of the Tero 4.0, they effectively quadruple your power, delivering enough power to tackle even the steepest climbs with ease and providing the extra strength needed to carry a mountain of adventure gear, groceries, children and daydreams without breaking a sweat. It's you, only faster. But what really sets this motor apart is how efficiently and smoothly it blends with your efforts.
• Specialised app and MasterMind: The Specialised app lets you customise the Tero's power levels to suit your preferences: all three standard power modes can be adjusted almost infinitely to suit your power and range needs.
• MasterMind's MicroTune feature can adjust power levels in 10% increments, so you can tailor your range to your needs.
• Mountain bike DNA: Tero's components are designed to improve control and safety. Aggressive yet smooth-rolling 29‘ wheels with 2.3’ Ground Control tyres provide ample traction in all situations, SRAM disc brakes ensure effective braking, 110mm of front suspension travel smooths out the ride, and a dropper seatpost comes in handy when you need to lower yourself in technical off-road situations.
• Turbo lock: Use the Specialized app to deactivate your bike's motor and activate the motion sensor alarm. Once locked, the motor cannot be reactivated except by the owner.
• Fender, rack and kickstand mounts: Approved for towing a trailer with a thru-axle. Compatible with child seats.
• Long range: With a range that lets you go anywhere, you can travel up to 140 km or 6.5 hours on a single charge (eco mode).

Tech spec

Electronics

• Motor: Specialized 2.0, torque 70 Nm, custom motor, 250 W nominal
• Battery: Specialized U2-710, integrated battery, charge status indicator, 710 Wh, UL
• User interface/remote control: MasterMind TCD, with handlebar remote control, integrated anti-theft function, Bluetooth® connectivity, customisable display pages

E-BIKE

• Charger: custom charger, 42V4A with Rosenberger plug, 100-240V
• Electronic wiring: custom wiring

Frame

• Frame: E5 aluminium, mid-drive motor, fully integrated and lockable battery in down tube, internal cable routing, wheel lock mount and compatible with front rack
• Seat clamp: alloy, bolt-on type, 34.9 mm
• Fork: SR SUNTOUR 34, 110 mm travel, 29", Boost 110x15 mm thru-axle

Brakes

• Front brake: Tektro Gemini Comp, hydraulic disc, resin pads, 200 mm
• Rear brake: Tektro Gemini Comp, hydraulic disc, resin pads, 180 mm

Drivetrain

• Shifters: Shimano, SL-U4000-9R, CUES, right, 9-speed Rapidfire, with optical gear display
• Rear derailleur: Shimano, RD-U4000, CUES, 9-speed Gs, Top Normal, Shadow Design, direct mount
• Sprocket set: Shimano, CS-LG300-9, CUES, 9-speed, 11-41T
• Chain: Shimano LG500
• Crankset: forged alloy cranks
• Gears: 40 teeth with Chain Retention technology
• Chain guard: Specialised chain guard

Wheels

• Rims: 29", internal width 25 mm, disc-specific
• Front hub: special alloy front hub, sealed cartridge bearings, 6 bolts, 15x110 mm thru-axle, 32 holes.
• Rear hub: special alloy rear hub, sealed cartridge bearings, 6 bolts, 12x148 mm thru-axle, 28 holes, HD Steel Fhb.
• Spokes: DT Swiss Elemental
• Front tyre: Ground Control, 2Bliss Ready, 29X2.35
• Rear tyre: Ground Control, 2Bliss Ready, 29X2.35
• Inner tubes: Specialised Turbo Tube

COCKPIT

• Stem: Specialised Stealth Stem, alloy, 14 degrees, 31.8 mm, integrated TCD mount
• Handlebar: Specialised Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27 mm rise, 31.8 mm clamp, S 720 mm, M-XL 750 mm
• Saddle: Bridge Sport, steel rails, 155 mm
• Seatpost: TranzX Dropper, 30.9 mm, S: 100 mm, M-XL: 120 mm
• Grips: Specialized Body Geometry

Accessories

• Pedals: Specialized, platform
• Front light: Lezyne, Ebike Mini Stvzo E300+, 300 lumens, 160 cm cable, with reflector
• Rear light: Spanninga, Stvzo, Commuter Glow With Brake XEr
• Rack: Specialised rack, MIK HD interface, integrated side bag mounts, maximum load 27 kg
• Lock: Turbo System Lock
• Mudguards: Specialized DRYTECH mudguards, width 65 mm, alloy mounts
• Kickstand: Specialized kickstand, 40 mm attachment
• Bell: Simple bell

Producer's weight: 25.75 kg (size MD)

Producer's notes: depending on component availability, specifications are subject to change without notice. Images are for illustrative purposes only.