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2025 Specialized

Turbo Tero 4.0 Step-Through

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

€2,999($3,419)€3,299
FrameAluminum
SuspensionHardtail, 110mm
ForkSuntour XCR
Wheels29″ Aluminum
Drivetrain1 × 9
GroupsetCUES
MotorSpecialized 250W 70Nm mid-drive
BatterySpecialized 710Wh
BrakesHydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Turbo Tero 4.0 Step-Through
Other Crosscountry bikes
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

View Comparison
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

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Price History
Reviews
E-Mountainbike Magazine
Specialized Turbo Tero X 6.0 on Test – Still the Benchmark SUV E Bike of 2025, or Has the Competition Caught Up?

Aug 2025 · Robin Ulbrich

Specialized Turbo Tero X 6.0 on test – Still the best SUV e bike in 2025? Strong performance, smart integration, and a well-rounded overall package?!

Highs
  • Tons of off-road riding fun

  • Wide range of use cases

  • High-quality, powerful MTB-grade components

Lows
  • Riding position too sporty for relaxed riders

  • No ABS

  • Heel strikes with large pannier bags on the rear rack

  • Cluttered cockpit

Read Review

ebiketips
Specialized Turbo Tero X 6.0

Dec 2023

Verdict: A superbly versatile e-hybrid on steroids

Read Review

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

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.

Read Review

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

Electric Bike Report
Specialized Turbo Tero 5.0 Review 2024 – Electric Bike Report

Jan 2023 · Michael Clark

We got some first impressions of the all-new Specialized Turbo Tero 5.0 at this year's Sea Otter Classic, an all-rounder with the heart of an eMTB.

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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

Geometry
Specs
Build
Frame

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

ColorsOak Green Metallic / Smoke; White Mountains / Gunmetal

Fork

SR Suntour XCR34-Boost, 110mm Travel

Travel110mm

Stem

Specialized Stealth Stem, alloy, 14 deg, 31.8mm, integrated TCD mount, S-M 60mm, L-XL 75mm

Handlebar

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

Saddle

Bridge Sport, Steel rails, 155mm

Seatpost

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

TypeDropper

Pedals

Specialized, platform

Grips

Specialized Trail Grips

Groupset
Rear Derailleur

Shimano Cues 9-speed, Shadow design

Crank

Custom Alloy Forged Crankarms, Isis, 170mm, Cl 50.73mm, BCD 104mm

Shifters

Shimano Cues 9-speed w/ gear indicator

Cassette

Shimano Cues 9-speed, 11-41

Chain

Shimano LG500

Brakes

Hydraulic Disc

TypeHydraulic Disc

Wheels
Rims

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 cartridge bearings, 6-Bolt, 12X148mm thru-axle, 28h, HG Steel Fhb

Tires

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
Bell

Bell

Rider Notes
Riders Also Viewed

First added October 26

Last updated June 27