techtron TEF EVO Series – The Ultimate Foldable e‑Bike

Meet the techtron TEF EVO range—one of the lightest and most technologically advanced folding e-bikes in its class. Engineered from cutting-edge AM60-grade magnesium alloy, each frame delivers exceptional strength, agility, and vibration-damping comfort in a feather-light build. Whether commuting through the city or exploring on weekends, the TEF EVO is built for smooth acceleration, confident handling, and all-day comfort.

Powered by a compact TOSEVEN rear hub motor delivering up to 700W peak output and torque from 45–55 Nm depending on model, the range features RegenIntelliBrake™—our intelligent energy-saving dynamic braking system that cuts motor power the instant you brake, adding motor resistance for smoother stops, reduced wear, and improved range. A high-performance Samsung 36V 10.5Ah lithium-ion seat-tube battery delivers up to 100 km of pedal-assist range on a single charge. The battery is removable, interchangeable, lockable, and fast-charging—engineered for riders who go the distance.

The TEF3 EVO and TEF3+ EVO models also feature Dual Power Mode, allowing you to switch between 250W efficiency or 350W torque-boosted performance (where permitted) for enhanced climbing power and speed.

Smarter control comes standard with the techtron Smart App, offering Smart Regional Power Control, a 5-Level Intelligent Assist System, and remote customisation of lighting, throttle, and ride settings. The app also supports off-peak charging, OTA firmware updates, and Smart Global Precision Tracking—fully compatible with Apple Find My and Android Find My Device.

A vibrant 2.2” TFT display provides real-time ride data, while the T-LUX2 or T-LUX3 lighting systems with integrated horn, grip-mounted indicators, and Bluetooth 5.3 keep you visible, connected, and in control. Precision Tektro HD‑E3520 hydraulic disc brakes, a Shimano RD-M310L 7-speed drivetrain, and techtron® KENDA KS+ tyres with Kevlar®-reinforced K‑Shield puncture protection ensure smooth, reliable performance on every surface.

The TEF2+ EVO and TEF3+ EVO models also include premium ZOOM 525 AMS hydraulic fork suspension with 100 mm travel, adjustable preload, hydraulic lock-out, and a coil spring system—delivering superior comfort and control over rough terrain and unpredictable city streets.

Folding in just 10 seconds and weighing between 17.7–18.5 kg, every TEF model is built to support up to 150 kg and fits neatly into a car boot—ready for a smarter, cleaner, more flexible way to ride.

Redefine the way you ride—smarter, smoother, and more sustainable.

Precision-Controlled Comfort for Every Ride

When the road gets rough, the techtron® ZOOM 525 AMS suspension system keeps your ride smooth, stable, and confidently in control. With 100 mm of travel, adjustable preload, hydraulic lock-out, and a coil spring system, it delivers smooth handling and maximum comfort across both urban commutes and off-road terrain. Designed to absorb shocks and vibrations with ease, this high-performance fork offers the perfect balance of responsiveness, durability, and rider-focused adjustability.

• 100 mm Travel with Preload Adjustment:  Fine-tune suspension feel and responsiveness for road or trail conditions

• Hydraulic Lock-Out:  Quickly switch to a rigid setup for climbing or flat-ground efficiency

• Coil Spring Damping:  Delivers reliable, consistent shock absorption and long-lasting performance

• Forged Alloy Crown & Steel Stanchions:  Built to withstand daily use with strength and durability

• Disc Brake Compatibility:  Post mount design supports 160–180 mm rotors for confident braking

• Wide Wheel Support:  Compatible with wheel sizes from 20" to 29", ensuring seamless integration across the techtron® range

Whether you're tackling cobblestones or carving through woodland paths, the ZOOM 525 AMS fork lets you ride harder, further, and more comfortably—no matter the terrain. It’s not just about softening the bumps—it’s about elevating every journey.

Smart Regional Power Control

Unlock smarter performance with techtron’s 5-Level Intelligent Assist System—designed for legal compliance and rider freedom across the globe. From pure pedal mode to full throttle, each level is controlled via the app, adapting to local laws and your riding style.

• Level 1 – Pure Pedal Mode: Traditional cycling with zero motor support. Quiet, efficient, and battery-saving
• Level 2–3 – Eco & Commute Assist: Smooth, responsive power calibrated for everyday riding. Fully compliant with UK and EU e-bike laws (25 km/h limit)
• Level 4 – Performance Boost (App-Unlocked): Unlock faster assist with enhanced torque and speed—available only in permitted regions via the techtron app
• Level 5 – Full Throttle Mode (App-Unlocked): Ride without pedalling using throttle-only mode. App-unlocked in throttle-friendly zones such as the USA, LATAM, and parts of Asia

Smart Compliance via App:
All enhanced modes are managed via the techtron SmartApp, featuring geo-fenced region control, user verification, and dynamic firmware updates.

Built for Global Riders:
Whether commuting through London or cruising in California, the system adapts to your region—giving you performance where allowed, and peace of mind everywhere else.

Advanced AM60 Magnesium Frame
Crafted from aerospace-grade AM60 magnesium alloy, the TEF EVO frame sets a new benchmark in lightweight e-bike engineering. Stronger than aluminium yet considerably lighter, AM60 offers the perfect balance of strength, shock absorption, and agile performance—without sacrificing comfort or durability. The result? A sleeker, smoother ride built for urban freedom, daily commuting, and weekend exploration.

Key Benefits:

• Ultra-Lightweight Build:
  Weighs as little as 17.7 kg, making it one of the lightest e-bikes in its class—easy to lift, store, and carry.

• Stronger Than Aluminium:
  Delivers high structural integrity with less material, improving strength-to-weight ratio and overall handling.

• Naturally Shock Absorbent:
  Magnesium offers superior vibration dampening for a smoother, quieter ride on varied terrain.

• Effortless Folding & Portability:
  Lightweight frame construction makes folding and transportation fast and easy—ideal for commuters and travellers.

• Rust-Free & Low-Maintenance:
  Corrosion-resistant and long-lasting, AM60 keeps your ride looking sharp with minimal upkeep.

• Premium, Agile Feel:
  Engineered for responsive control, refined geometry, and stable cornering at any speed.

The techtron TEF EVO series is built for riders who demand more from their braking system. That’s why we’ve equipped every model with the Tektro HD‑E3520 hydraulic disc brake — delivering powerful, responsive braking and next-level safety integration.

At the core is a built-in motor cut-off sensor that instantly disables power the moment you brake. No lag. No hesitation. Just complete control, exactly when you need it most.

Why it Sets a New Standard:

• Motor cut-off built into the brake lever for real-time power disengage
• Helps prevent overrun in emergency stops and high-speed braking
• 2-piston hydraulic calipers = smooth, consistent stopping force
• Reach-adjustable levers for a tailored grip and comfort
• Advanced mineral oil system = reliable performance, less maintenance

Ride Safer. Brake Smarter:

With Tektro HD‑E3520, every squeeze of the brake means more than stopping, it means protecting the rider, conserving control, and building trust in every ride.

High-Performance Samsung Lithium-Ion Battery
At the heart of every TEF EVO is a premium Samsung 36V 10.5Ah lithium-ion battery, engineered for endurance, reliability, and fast charging. Built using industry-leading 18650 cell technology, it delivers long-range power in a compact, lightweight format—perfect for daily commutes, weekend adventures, and everything in between. Lockable, removable, and rapid-charging, this is premium-grade energy, built to go the distance.

Key Benefits:

• Up to 100KM Range:
  Enjoy extended pedal-assist performance, tested in lab conditions to deliver exceptional range per charge.

• Samsung 18650 Cell Technology:
  Trusted lithium-ion power source with high energy density, thermal stability, and proven safety standards.

• Lockable & Removable Design:
  Securely mounted and easily detached for indoor charging or theft prevention on the go.

• Super-Fast Charging:
  Recharge to full in approx. 3 hours with the included Dynamic Smart Charger—or to 80% in just 120 minutes.

• Built for Urban & All-Terrain Use:
  Consistent power delivery, hill-climbing torque, and reliable performance even in cold or variable conditions.

• Low Maintenance, Long Lifespan:
  Designed for 800+ charge cycles with minimal capacity drop, keeping your e-bike adventure-ready for years.

ToSeven C7‑XR Motor – Smart Power for the TEF Range

The techtron TEF range is powered by the ToSeven C7‑XR rear hub motor, engineered for a superior urban riding experience. This advanced powertrain offers torque-sensing pedal assistance, whisper-quiet operation, and seamless integration with Shimano RD-M310L 7-speed gearing and Tektro HD‑E3520 hydraulic brakes.

At just 3.5 kg, the C7‑XR delivers a mid-drive feel in a rear-hub format, making it ideal for folding and city e-bikes. Its sealed aluminium housing, IP67 waterproof rating, and intelligent thermal protection ensure consistent all-weather performance.

New to the TEF range is RegenIntelliBrake™ - our Intelligent Energy-Saving Dynamic Braking instantly cuts motor power the moment you brake and applies precise motor resistance for smooth, stable stopping, reducing energy loss and extending the life of your brakes.

Key Features & Advantages:

• Rear-Hub Torque Sensor:  Mid-drive riding feel with simplified rear-hub design
• Dual Sensor System:  Combines torque + automated sensors for real-time adaptive power delivery
• RegenIntelliBrake™: Pure Performance, No Trade-Offs: Unlike regenerative systems, it keeps your ride light, powerful, and efficient—without added weight, battery strain, braking drag, or reduced grip in tough conditions.
• Firmware-Ready Architecture: Supports custom torque mapping, speed tuning, and regen control
• High-Speed Gear Ratio:  Smooth pedalling up to 32 km/h (region dependent)
• Advanced Safety Protocols:  Includes automatic thermal regulation and overcurrent protection
• Low-Vibration Operation:  Sealed aluminium casing reduces noise and vibration
• Lightweight Design:  Compact at just 3.5 kg with a 135 mm dropout spacing
• IP67 Certified:  Fully waterproof and dustproof for year-round reliability

Built for Intelligent Riding:
The ToSeven C7‑XR brings next-generation performance to the techtron TEF range, designed for riders who demand smarter, smoother, and more sustainable urban mobility.

Ride smarter. Ride smoother. Go further.

Smart Global Precision Tracking

Stay connected to your ride anywhere. With dual Apple Find My and Google Find My Device compatibility, your e-bike or e-scooter uses more than just GPS—it combines Wi-Fi, Bluetooth, and cellular signals for unmatched accuracy indoors and outdoors. Apple’s offline relay network even uses nearby devices to securely share your vehicle’s location, so you can always track it, even without an internet connection.

Key Features

• Dual Network Support: Compatible with Apple Find My and Google Find My Device

• Multi-Signal Accuracy: GPS, Wi-Fi, Bluetooth, and cellular combined for precise tracking

• Offline Location: Apple’s relay network locates your ride without internet access

• Real-Time Security: Instant, secure updates give you total peace of mind