Monday | 9.00am - 5.30pm |
Tuesday | 9.00am - 5.30pm |
Wednesday | 9.00am - 5.30pm |
Thursday | 9.00am - 5.30pm |
Friday | 9.00am - 5.30pm |
Saturday | 9.00am - 5.30pm |
Sunday | 10.00am - 4.00pm |
Bank Holidays | 10.00am - 5.00pm |
2025 Specialized Turbo Tero 4.0 Step-Through EQ Electric MTB Bike Black

Click & Collect - Always fast, easy & free
Select Click & Collect at checkout and pick up your order at a convenient location
Monday | 9am - 5.30pm |
Tuesday | 9am - 5.30pm |
Wednesday | 9am - 5.30pm |
Thursday | 9am - 5.30pm |
Friday | 9am - 5.30pm |
Saturday | 9am - 5.30pm |
Sunday | 10am - 4.00pm |
Bank Holidays | 10am - 4.00pm |
Monday | 8am - 6.00pm |
Tuesday | 8am - 6.00pm |
Wednesday | 8am - 6.00pm |
Thursday | 8am - 6.00pm |
Friday | 8am - 6.00pm |
Saturday | 9am - 5.30pm |
Sunday | 10am - 4.00pm |
Bank Holidays | 10am - 5.00pm |
The Turbo Tero means one thing: you're going to need a bigger map. With ride anywhere range, this adventure-ready suspension electric bike is our go-anywhere, over anything, with everything vehicle. Plus, with enough storage space to pack in a few backcountry comforts, you'll discover new adventures easier than ever. The only question left to ask is where to? Looking for a commuter you can take touring? A touring bike that can haul cargo? This is it. In a word, the Tero is unstoppable. Off-road capable wheels and tires, powerful hydraulic disc brakes, and a full-on suspension fork can transform every ride into an adventure, whether you're on dirt roads or cruising through the concrete jungle. POWERFUL: It's you, only faster. The Turbo Full Power system senses the force you apply to the pedals and amplifies your effort up to four times for an experience that makes getting up any hill or to any destination no sweat. Literally. COMFORTABLE AND CONFIDENT: Both body position and handling are optimized to deliver everything the rider needs: comfort, confidence, and control. Reign in your speed with hydraulic disc brakes and stay in control with larger tires that offer more traction for turning and stopping on any terrain. TURBO: The heart of the Tero is its Turbo technology. The advanced and integrated electric bike system delivers an unequaled combination of power, natural feel, anti-theft functions, training tips, a full-function bike computer, and more. SECURE: Tero has anti-theft on lock. Thwart would-be bike thieves by disabling the motor with a press of a button so nobody can turn the motor back on without your personalized pin. For additional protection, lock the battery in the bike or take it with you to make bike thieves miserable. SILENT: Turbo Full Power Motor provides smooth, quiet, and seamless amplification for a quiet ride on any terrain. The speed limit at which the motor will stop supporting may vary significantly by region and is based on local requirements. It may also affect range: a higher speed limit may result in less range.
- Turbo Full Power 2.0 Motor and 710 Wh Battery- Integrated into the aluminum frame of the Tero 4.0, they effectively quadruple your own power, cranking out ample wattage to make short work of the steepest climbs and providing enough extra muscle to let you carry a mountain of adventure gear, groceries, kids and daydreams without breaking a sweat. It’s you, only faster. But what really sets this motor apart from the rest is how efficiently and seamlessly it melds with your own efforts.
- Specialized app and MasterMind - Specialized app allows you to tailor Tero’s power output levels to your desired preference—all three standard power modes can be almost infinitely adjusted to suit your power and range needs. MasterMind’s MicroTune function can adjust power output levels in 10% increments so that you can tune the range to suit your needs.
- Mountain Bike DNA- Tero’s componentry is tailored to enhance control and confidence. Aggressive but smooth rolling 29†wheels with 2.3†Ground Control tires offer ample traction in every situation, SRAM disc brakes deliver substantial braking bite, 110 mm of front suspension travel smooths the trail, and a dropper seatpost is there for when you need to really get down in technical off-road situations.
- Turbo System Lock - Use the Specialized app to disable your bike’s motor and activate the motion sensor alarm. Once locked, the motor cannot be enabled again except by the owner.
- Fender, Rack, and Kickstand mounts. Rated to pull a thru-axle trailer. Child seat compatible.
- Long-Range - With a ride-anywhere range, go up to 86 miles (140 km) or 6.5 hours on a single charge (eco mode).
All UK Mainland Bike Deliveries Over £999 - Free Bike orders are sent via TNT/FedEx with estimated delivery within 1 working day after quoted dispatch time (For Scottish Highlands, Northern Ireland, Isle of Man and the Channel Islands deliveries please allow an additional 1-4 working days).Bike orders under £999 will incur a £25 delivery fee.
Free Delivery On Orders Over £50.00 - When you spend more than £50.00 at 99 Bikes deliveries to a UK mainland address will be free (excludes bikes & large items).Certain regions and territories of the UK will incur additional charges, details of which can be found on our delivery page.
Click & Collect Orders -Please be aware Click & Collect orders may take some time to fulfil. We advise not to travel to your chosen store until you have been notified that your order is ready for collection.
At 99 Bikes our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you aren't, we offer a 30 day online return policy* in which you can receive a full refund. Any item including bikes (with the exception of food) can be returned to us for any reason provided it is received by us in an unused and resalable condition in or with its original packaging which must be undamaged.
Find Out More About Returns >

battery
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Specialized U2-71, alloy casing, state of charge display, 71Wh
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brakes
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(F) Tektro HD-M52 18mm (R) Tektro HD-M52 18mm
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cassette
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Shimano, CS-LG3-9, CUES, 9-Speed, 11-41T
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chain
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Shimano LG5
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crankset
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Custom Alloy Forged Crankarms, Isis, 17mm, Cl 5.73mm, BCD 14mm
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display
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MasterMind TCD, w/handlebar remote, built-in anti-theft feature, Bluetooth® connectivity, customizable display pages
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fork
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SR SUNTOUR, Sf25-Xcr34X-Boost-Coil-2Cr, 1mm Travel, Crown Od 58mm, 15mm Thru Axle, 29Er, 51mm Offset
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frame
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E5 Aluminum, bottom bracket motor mount, fully integrated &lockable downtube battery, internal cable routing, lock and front rack mount
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grips
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Body Geometry Grips
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handlebars
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Specialized Trail, 661 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 31.8mm clamp, S 72mm, M-XL 75mm
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hubs
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(F) Specialized alloy front hub, disc, sealed cardridge bearings, 6-bolt, 15x11mm thru-axle, 32h (R) Specialized alloy rear hub disc, sealed cartridge bearings, 6-Bolt, 12X148mm thru-axle, 28h, HD Steel Fhb
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motor
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Specialized 2., 7Nm torque, custom tuned motor, 25W nominal
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rear derailleur
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Shimano, RD-U4, CUES, Gs 9-Speed, Top Normal, Shadow Design, Direct Attachment
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rims
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Stout XC 29, 25mm internal width, disc-specific
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seatpost
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TranzX Dropper, 3.9mm, S: 1mm, M-XL: 12mm
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shifters
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TranzX Dropper, 3.9mm, S: 1mm, M-XL: 12mm
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tyres
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(F) Ground Control, 2Bliss Ready, 29x2.35" (R) Ground Control, 2Bliss Ready, 29x2.35"
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Please note the following size guides are a general overview and represent a rough guide to bike sizing. Each bike may deviate from these figures.
Road Bikes
Size | XXS | XS | S | M | L | XL | XXL |
Height (cm) | 155 - 160 | 160 - 166 | 167 - 172 | 173 - 179 | 180 - 185 | 186 - 191 | 192 - 207 |
Mountain Bikes
Size | XS | S | M | L | XL |
Height (cm) | 145 - 160 | 150 - 165 | 160 - 175 | 170 - 185 | 180 - 200 |
Hybrid & Urban Bikes
Size | XS | S | M | L | XL |
Height (cm) | 150 - 160 | 160 - 170 | 170 - 180 | 180 - 190 | 190 - 200 |