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Specialized Turbo Tero 4.0 EQ (2026)

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Go Anywhere. Do Everything.

Specialized Turbo Tero

The Turbo Tero isn’t just an e-bike — it’s your ticket to adventure. With full-power assist, rugged capability, and built-in cargo versatility, the Tero turns every ride into an expedition. Whether you’re hauling gear across town, exploring gravel roads, or heading out for the weekend, this is the bike that does it all — comfortably, confidently, and quietly.

Looking for a commuter that can take on the backroads? Or a touring bike that can haul serious cargo? The Tero is all that and more. Its wide 29” Ground Control tires, powerful hydraulic brakes, and 110 mm suspension fork give it true mountain bike DNA — ready for dirt, tarmac, or anything in between.


Why We Love It

Powerful
It’s you, only faster. The Turbo Full Power 2.0 motor and 710 Wh battery amplify your pedaling up to four times, flattening steep climbs and letting you carry whatever the day demands. The system’s natural, seamless feel makes power delivery smooth, silent, and intuitive.

Comfortable & Confident
Optimized geometry and large-volume tires provide a planted, balanced ride — giving you control and stability on any surface. SRAM hydraulic disc brakes deliver precise stopping power, while a dropper seatpost lets you tackle rough terrain with ease.

Smart Turbo Tech
At the heart of the Tero is Specialized’s Turbo Operating System — combining custom-tuned hardware, advanced software, and anti-theft security. The MasterMind display offers real-time tuning, range estimates, and diagnostics, while the Specialized app adds fine-tuned control, ride analytics, and Turbo System Lock protection.

Secure & Silent
Disable the motor with a tap and trigger a motion alarm using the Specialized app — a built-in deterrent that keeps your bike safe wherever adventure takes you. The motor runs whisper-quiet, so you can focus on the ride, not the noise.

Adventure Ready
With mounts for fenders, racks, a kickstand, and even a thru-axle trailer, the Tero is built to haul it all — from groceries to camping gear. Long-range battery life means up to 140 km (86 mi) or 6.5 hours of ride time in Eco mode.


At a Glance

Use: Commuting, touring, and off-road adventure
Motor: Specialized Full Power 2.0 | 70 Nm torque | 250 W nominal
Battery: 710 Wh integrated, removable, lockable
Range: Up to 140 km (86 mi) / 6.5 hours (Eco mode)
Suspension: 110 mm front travel
Wheels: 29” with 2.3” Ground Control tires
Brakes: SRAM hydraulic discs
Security: Turbo System Lock + motion alarm via Specialized app
Cargo: Rack, fender, and kickstand mounts | Child seat & trailer compatible

E-Bike

Motor Specialized 2.0, 70 Nm torque, custom-tuned motor, 250 W nominal

UI / Remote MasterMind TCD with handlebar remote, built-in anti-theft feature, Bluetooth® connectivity, customizable display pages

Battery Specialized U2-710, integrated battery with state-of-charge display, 710 Wh, UL certified

Charger Custom charger, 42 V 4 A with Rosenberger plug, 100–240 V

Wiring Harness Custom wire harness

Frameset

Frame E5 Aluminum, mid-drive motor, fully integrated and lockable downtube battery, internal cable routing, wheel-lock mount, and front-rack compatibility

Seat Binder Alloy, bolt-type, 34.9 mm

Suspension

Fork SR Suntour 34, 110 mm travel, 29″, 110 × 15 mm Boost axle

Brakes

Front Brake Tektro Gemini Comp hydraulic disc, resin pad, 200 mm

Rear Brake Tektro Gemini Comp hydraulic disc, resin pad, 180 mm

Drivetrain

Rear Derailleur Shimano RD-U4000 CUES GS 9-speed, Shadow Design, direct attachment

Shift Levers Shimano SL-U4000-9R CUES right 9-speed Rapidfire with optical gear display

Cassette Shimano CS-LG300-9 CUES 9-speed, 11–41 T

Chain Shimano LG500

Crankset Custom alloy forged crankarms

Chainrings 40 T with Chain Retention Technology

Chaincase Specialized Chain Cover

Wheels & Tires

Rims 29″ double-wall alloy, 25 mm internal width, disc-specific

Front Hub Specialized alloy hub disc, sealed cartridge bearings, 6-bolt, 15 × 110 mm thru-axle, 32 H

Rear Hub Specialized alloy hub disc, sealed cartridge bearings, 6-bolt, 12 × 148 mm thru-axle, 28 H, HG steel freehub

Spokes DT Swiss Elemental

Front Tire Specialized Ground Control 2Bliss Ready, 29 × 2.35

Rear Tire Specialized Ground Control 2Bliss Ready, 29 × 2.35

Inner Tubes Specialized Turbo Tube

Cockpit

Stem Specialized Stealth Stem, alloy, 14°, 31.8 mm, integrated TCD mount

Handlebars Specialized Trail 6061 alloy, 8° backsweep, 6° upsweep, 27 mm rise, 31.8 mm clamp — S 720 mm / M–XL 750 mm

Grips Specialized Body Geometry

Saddle Bridge Sport, steel rails, 155 mm

Seatpost TranzX dropper, 30.9 mm — S 100 mm, M–XL 120 mm travel

Accessories

Pedals Specialized Platform

Headlight Lezyne E-Bike Mini STVZO E300+, 300 lumens, 160 cm wire with reflector

Taillight Spanninga STVZO Commuter Glow with Brake XEr

Rack Specialized Rack, MIK HD interface, built-in pannier mounts, 27 kg capacity

Fenders Specialized DRYTECH fenders, 65 mm width, alloy fender stays

Kickstand Specialized Kickstand, 40 mm mount

Bike Lock Turbo System Lock

Bell Simple bell

Product Details

Product ID 222100

Compliance Certification Certified to UL 2849 (e-system) and/or UL 2271 (battery) by UL Solutions and/or SGS. <br>For information on lithium-ion battery standards and regulations in New York City, visit <a href="https://www.nyc.gov/fdny/batteries" target="_blank">nyc.gov/fdny/batteries</a>.

Weight 25.75 kg (56 lb 12.3 oz) – Size MD

Warranty

All Specialized bikes are covered by a lifetime warranty on the frame and fork (for the original owner) against defects in materials and workmanship.

Electrical components, including the motor, battery, and electronics, are covered by a two-year warranty from the date of purchase.

Warranty claims must be processed through an authorised Specialized retailer and require proof of purchase

Size S M L XL
Crank Length (mm)170170170170
Handlebar Width (mm)720750750750
Stem Length (mm)60607575
Saddle Width (mm)155155155155
Seatpost Length (mm)360400400400
Stack (mm)637651664687
Reach (mm)405426446462
Head Tube Length (mm)135150165190
Head Tube Angle (°)66.4°66.4°66.4°66.4°
BB Height (mm)313313313313
BB Drop (mm)57575757
Trail (mm)114114114114
Fork Length (Full) (mm)516516516516
Fork Rake / Offset (mm)44444444
Front Center (mm)709736761787
Chainstay Length (mm)470.4470.4470.4470.4
Wheelbase (mm)1173120012261252
Top Tube Length (Horizontal) (mm)589620650680
Bike Stand-Over Height (mm)658655655664
Seat Tube Length (mm)400450460500
Seat Tube Angle (°)73.9°73.4°72.9°72.4°

How to Choose the Right Electric Bike

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

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

Do you need to carry anything? Is it cargo, a kid, 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 might mean 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 a 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 electric bike page and use the filters to narrow down your options based on how you answered the questions above.

Non-electric bikes are fine for flat, short trips with lighter loads, or more recreational endeavors. But if you’ve got hills, longer distances, or a wriggly kid or gear on board, an electric bike will change your life. The motor takes the sting out of climbs, makes heavy loads manageable, and opens up bigger commutes sans sweat.

Worried you'll get lazy? Honestly, it doesn't happen. If anything you'll find yourself riding your bike more knowing you have that electric support - think those occasions when you need to do a small grocery shop or pop into town for a dinner. Easier to grab the bike than the car. Plus you can still push it just as hard! You'll just get places faster.

Do I always need to fully charge my e-bike?

No! If you just need a top-up to cover your ride, charging to 50% is fine. A good rule of thumb for prolonging battery life is to avoid consistently running it flat. We suggest charging before it drops below 20%.

Modern e-bike batteries are managed by a Battery Management System (BMS), which protects the cells against overcharging, deep discharge, and overheating - so you can charge with confidence.

In most cases, the battery can also be removed from the bike and charged indoors, which is convenient in winter or if you don’t have power access where you park your bike.

Yes. Most electrics bikes - especially ones for commuting - come equipped with a rear rack. Pannier bags or child seats can easily be fitted in most cases.

When riding an e-bike there is no need to be tucked down low into the wind as the motor simply pushes you through it, but if you’re an experienced rider you may find that a sporty riding position is more familiar and comfortable. If you’re new or newly returning to cycling you might prefer an upright step-thru bike, generally new riders feel safer riding upright. Perhaps you’d like a mix of both in which case a mid-step frame will typically give you that semi upright riding position. The riding position on most bikes can be customised somewhat with adjustable handlebars and seat positions. We can help you with this in-store. Use the frame style filters in our shop pages to choose your desired riding position.