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2023 Specialized

Turbo Tero 4.0

A 29″ aluminum frame hardtail crosscountry e-bike with upper mid-range components.
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Manufacturer Price

A$7,300($5,122)
Weight50.3 lbs  
FrameAluminum
SuspensionHardtail, 110mm
ForkRockShox Recon Silver TK
Wheels29″ Aluminum
Drivetrain1 × 11
GroupsetNX
MotorSpecialized 250W 70Nm mid-drive
BatterySpecialized 710Wh
BrakesSRAM Guide T Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Turbo Tero 4.0
Other Crosscountry bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

28 mph

Turbo Tero 4.0

27 mph

Similar Bikes

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full Turbo Tero model range

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Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews

Summary

The Specialized Turbo Tero is a versatile cross-country e-bike designed for a variety of terrains, from urban commuting to light trails. It features smooth power delivery, intuitive handling, and a comfortable ride, supported by features like a dropper seatpost and customizable motor settings. However, some models may have compromises in suspension performance, gearing, and weight, affecting agility and efficiency.

Pros
  • Versatile for multiple terrains and uses

  • Smooth and intuitive handling

  • Comfortable ride with good power delivery

  • High-quality build and attention to detail

  • Customizable features via app and display

Cons
  • Heavy and not nimble on narrow trails

  • Suspension can feel crude or lack comfort

  • Gearing range may not match motor requirements

  • Motor noise and sluggish power delivery in some models

  • Expensive and has some design compromises

Key Quotes
The ride feel is smooth, easy and intuitive, inspiring confidence.
BikeRadar logoBikeRadar
We see it more as a trekking bike that can handle moderate off-road terrain when necessary.
Downtown logoDowntown
It’s one of the best ebikes I’ve tested.
Electric Bike Review logoElectric Bike Review
It's very much a jack of all trades.
The Gear Loop

Feedback?

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ebiketips
Specialized Turbo Tero X 6.0

Dec 2023

Verdict: A superbly versatile e-hybrid on steroids

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BikeRadar
Specialized Turbo Tero X 4.0 review

Aug 2023 · Warren Rossiter

Urban mountain machine with slick suspension

Highs
  • Superb ride comfort

  • Brilliant handling on a variety of terrain

  • Well priced

Lows
  • Very little

  • But may be too off road for some

Read Review

Electric Bike Report
Specialized Turbo Tero X 5.0 E-Bike Review 2023

Jun 2023 · Justin Taylor

Want one bike that will both get you to work in the city and let you hit the local singletrack on the weekend? When the Specialized Turbo Tero X 5.0 showed up at the office for review, we found ourselves asking: how are we going to handle this bike? At first glance, it’s an obvious

Highs
  • Extremely versatile: can be ridden as a Class 3 commuter, for bike packing adventures, AND on XC single track

  • Natural riding experience, thanks to the custom-tuned Specialized 2.0 motor

  • Very comfortable as a commuter, and comes set up with fenders + mounting options for a wide array of additional commuting/bike packing accessories

  • Handles well on cross country single track trails – better than we expected and we didn’t even take off the fenders

  • Great app performance with the Mission Control app and Mastermind TCD controller

  • Great range: we got 73.75 miles on ECO, averaging around 14.3 mph.

  • You can choose the power/components you want across the various Tero X models

Lows
  • As with the Turbo Vado, the magnetic charger is a little hard to seat when you go to charge the bike

  • The fenders rattled just a little bit on the XC trails – it would be nice to have a way to easily remove the fenders

Read Review

Bikerumor
Mountain Bike? City Bike? The Specialized Turbo Tero X is a Go Anywhere + Bring It All, Mullet eBike

Feb 2023 · Ron Frazelle

California's Specialized Bicycles has released a new All-terrain eBike in the Turbo Tero X with a big range and appetite for adventure.

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EMTB Forums
Introducing the new Specialized Turbo Tero X full suspension emtb

Feb 2023 · Knut Nes

Great news! The new Specialized Tero X is not a bike full of the latest innovation costing €18.000! No, this is a much cheaper bike that only comes with an aluminium frame. Check out the video to hear me talk about the bike, or keep reading...

Read Review

The Gear Loop
Specialized Turbo Tero 5.0 review: an e-bike for all riders

Jun 2022

We take top-end, all-terrain Specialized eBike for a spin

Read Review

Electric Bike Review
Specialized Turbo Tero 4.0 EQ Review

Feb 2022

Price: $5800.00 | Model Year: 2022 | A feature-complete hardtail cross country electric mountain bike outfitted with outstanding fenders, rear rack, and integrated lights available in four frame sizes and three trim levels (3.0, 4.0, 5.0). Capable as a commuting platform and light off-road machine thanks to knobby 29er tires and high-end hydraulic brakes.

Observations
  • A feature-complete hardtail cross country electric mountain bike outfitted with outstanding fenders, rear rack, and integrated lights available in four frame sizes and three trim levels (3.0, 4.0, 5.0). Capable as a commuting platform and light off-road machine thanks to knobby 29er tires and high-end hydraulic brakes.

  • Excellent weight distribution and electronics integration. Lightweight, smooth, responsive Brose motor (custom made with Specialized) offers up 70nm of torque and is highly tunable with Mission Control smartphone app. Internally routed cables stay out of the way and look great.

  • Outstanding battery pack shape and mounting design, there's no need for a separate cover that adds weight and complexity, removal feels safe despite exiting downwards from the downtube. Magnetic charging interface is convenient and durable, fast charger is compact and capable. TCD2 MasterMind color display can be dimmed, beeps and haptics can be disabled, you can even customize readouts or remove screens.

  • Above-average suspension fork with 110mm travel, compression, lockout, preload, and rebound adjustability. High-visibility reflective sticker and integrated lights (which can be turned off) keep you safe. USB-C charging port on display helps maintain portable electronics. Dropper seat post makes the bike approachable and Body Geometry touch points feel great (to me). Pointy kickstand, less immediate power from standstill, front fender that clips curbs and bike racks, high price, limited availability, no equipped models in North America are the drawbacks.

Read Review

Bike Perfect
Specialized Turbo Tero 3.0 review

Nov 2021 · Guy Kesteven

Specialized’s new Turbo Tero 3.0 is practical for shopping and the school run but will handle gentle singletrack too

Highs
  • MasterMind functionality is genuinely genius

  • Full Mission Control tuneability

  • Quiet, smooth mid-power motor

  • Good value componentry

  • Decent battery range

  • Fast on- or off-bike charging

  • Lockable battery and motor

  • Cargo, trailer and fender fixtures

  • Confident steering feel

  • Quality fast all-rounder tires

Lows
  • Limited gear range

  • Undamped fork limits control off-road

  • Harsh frame

Read Review

Geometry
Specs
Build
Frame

E5 Aluminum, bottom bracket motor mount, fully integrated &lockable downtube battery, internal cable routing, lock and front rack mount

ColorBlack / Black

Fork

Rockshox Recon Silver TK, 110mm travel, Motion-Control

Travel110mm

Spring TypeCoil

Stem

Stout 3D-forged alloy, 31.8mm, 6-degree rise

Handlebar

Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 31.8mm clamp, S: 720mm, M-XL: 750mm

Saddle

Rivo Sport, steel rails, 155mm

Seatpost

TranzX Dropper, 30.9mm, S: 100mm, M-XL: 120mm

TypeDropper

Pedals

Specialized platform pedal

Grips

Specialized Trail Grips, Lock-on

Groupset
Rear Derailleur

SRAM NX, 11-speed

Crank

Custom alloy forged crankarms, Praxis, 36T, 104BCD

Shifters

SRAM NX, 11-speed

Cassette

SRAM PG-1130, 11-speed, 11-42t

Chain

KMC e11S, 11-speed w/ Missing Link™

Brakes

Front: SRAM Guide T, 4-piston caliper, hydraulic disc, 200mm, Rear: SRAM Guide T, 4-piston caliper, hydraulic disc, 180mm

TypeSRAM Guide T Hydraulic Disc

Wheels
Rims

Stout XC 29, 25mm internal width, disc-specific

Spokes

DT Swiss Industry

Front Hub

Specialized alloy front hub disc, sealed cardridge bearings, 6-bolt, 15x110mm thru-axle, 32h

Rear Hub

Specialized alloy rear hub disc, sealed cardridge bearings, 6-bolt, 12x148mm thru-axle, 32h

Tires

Front: Ground Control, 2Bliss Ready, 29x2.35", Rear: Ground Control, 2Bliss Ready, 29x2.35"

Electric Components
Motor

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

Battery

Specialized U2-710, alloy casing, state of charge display, 710Wh

Remote

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

Display

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

Charger

Custom charger, 42V4A w/ Rosenberger plug, 100-240V

Accessories
Lock

Turbo System Lock

Bell

Simple bell

Rider Notes
Riders Also Viewed

First added July 30

Last updated December 29

Not listed for 166 days