Ride rough trails or singletrack with power and control. This new off-road E-bike helps you conquer hills and challenging terrain in a whole new way.
The all-new Fathom E+ Pro is built on a lightweight ALUXX SL aluminium frame with trail-friendly geometry and 120mm fork. It has a 500Wh EnergyPak that’s integrated into the downtube and the new and improved RideControl ONE handlebar control buttons. Designed to ride on a variety of terrain, from mild XC to more challenging technical trails, it delivers responsive hardtail handling. The SyncDrive Pro motor technology gives you 360 percent tuneable power. This can be adjusted exactly the way you want via the Ride Control app where you can also record health, fitness and navigation data.
Key Performance Factors
Range & Battery
Up to 100 miles of riding time per charge and capable of well over 100,000 miles for the batteries lifespan.
Let the E-bike do thinking, while you do the riding. Our new SmartAssist mode automatically selects the most efficient motor support for the terrain.
Charge less, ride more - get up to 60% capacity in just 90 minutes with our new fast charger.
How far can I expect to ride on a single battery charge?
The range for a single battery charge can vary greatly depending on conditions such as the combined weight of the rider and cargo; wind resistance; tyre pressure and tread profile; terrain and elevation changes; road or trail surface; outdoor temperature; maintenance of the E-Bike; and the condition of the battery.
The bar below gives an approximate range. Conditions are categorized as extreme, good and ideal. Extreme conditions typically occur when riding with a heavy load, strong headwinds or excessive climbs.
The most accurate way to determine any bike’s weight is to have your local dealer weigh it for you. Many brands strive to list the lowest possible weight, but in reality weight can vary based on size, finish, hardware and accessories. All our bikes are designed for best-in-class weight and ride quality.
Every effort has been made to ensure accuracy throughout this website. However, Giant reserves the right to change bike specifications, features, prices and colours without prior notice.
Selection of a button will change the units measurement displayed throughout the entire sizing guide section.
Seat Tube Length (mm)(inch)
Seat Tube Angle (degrees)
Top Tube Length (mm)(inch)
Head Tube Length (mm)(inch)
Head Tube Angle (degrees)
Fork Rake (mm)(inch)
Chain Stay Length (mm)(inch)
Bottom Bracket Drop (mm)(inch)
Stand Over Height (mm)(inch)
Handlebar Width (mm)(inch)
Stem Length (mm)(inch)
Crank Length (mm)(inch)
Techs & Features
ALUXX SL Aluminum Technology
This High-Performance level, state-of-the-art aluminum material is made predominantly from 6011 alloy and delivers best-in-class strength-to-weight ratios. These framesets also feature unique welding technologies for a high-performance ride quality.
Hybrid Cycling Technology
Hybrid Cycling Technology is a system that combines electric power with human power to produce a smart, natural and powerful E-bike riding experience. It’s an integrated group of technologies that includes our RideControl control unit, EnergyPak battery systems and SyncDrive motor.
SyncDrive Pro powered by Yamaha is designed for high-performance E-bike riding. Giant tuned the motor to make it more powerful, producing a performance-oriented riding style. The lightweight, compact SyncDrive Pro motor is used primarily on Giant’s high-performance models.
RideControl ONE takes your E-bike riding experience to new levels with integrated button controls and a clean handlebar free of any display. The E-bikes equipped with RideControl ONE can connect with the Giant E-bike App to function as your E-bike display
All SyncDrive motors have Smart Assist technology, which adjusts the support to match the rider’s needs. By using information from multiple sensors, both rider input and terrain feedback are used to determine the optimal amount of pedaling assistance. SyncDrive is the only e-bike system that utilizes both rider input and terrain feedback. It gives you a smooth, natural riding experience with ample power when you need it, while also conserving power when you don’t need as much.