Everything a young rider needs to climb higher, ride longer and have more fun on the trail. This all-new E-bike will put a smile on any kid’s face and make family adventures more enjoyable than ever.
The new Fathom E+ Jr. opens up a world of off-road adventures for young riders. Its lightweight ALUXX aluminium frame and trail-friendly geometry make it easy to handle for smaller riders. It has 26-inch wheels for balance and control on dirt paths and singletrack trails. Equipped with our tunable SyncDrive Sport technology, which delivers up to 70Nm and 350 percent more pedaling power, it helps young riders tackle tough climbs with ease. The EnergyPak 400 battery and RideControl ONE button controls are smoothly integrated and easy to use. The frame is designed for a 80mm suspension fork and a 9-speed drivetrain, and the Giant E-bike App allows the motor to be tuned for individual riding style and power preferences.
Key Performance Factors
Responsive hardtail handling
ALUXX aluminium frame is designed for and fitted with a 80mm suspension fork for a smooth riding experience, and the SyncDrive Sport delivers up to 350 percent pedaling power.
RideControl ONE gives this kid’s trail bike integrated, simple button controls that are easy to use. The RideControl App offers navigation, health and fitness functionalities.
Downtube-integrated EnergyPak Smart battery with 400Wh of capacity charges up to 80 percent in 60 minutes with our 6A 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; tire 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.
EnergyPak 400 / SyncDrive Sport
Extreme: 58 KM36 miles
Good: 112 KM69 miles
Ideal: 175 KM108 miles
Giant SyncDrive Sport, powered by YAMAHA
Giant RideControl One ANT+
Giant PedalPlus 6-sensor technology
Giant RideControl ONE, Remote button
Giant EnergyPak 400, 36V integrated Lithium-Ion
ALUXX grade aluminium
SR Suntour XCM HLO, 80mm travel
Giant Connect trail rise, 31.8mm
Giant Contact, 8 degree
Giant Alloy, 30.9mm
Shimano Altus, 9sp
Shimano Alivio Shadow
Tektro HDM282 hydraulic disc, 160mm
Tektro HDM282 hydraulic
Shimano HG200, 11-36T, 9sp
KMC e9 Sport
Forged Alloy, 34T
Giant alloy disc, Fr: 28H, Rr: 32H
Maxxis Ikon, 26x2.20”
Giant EnergyPak 4A fast charger
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.
All specifications listed are subject to change without notice.
A lightweight ALUXX aluminum frame and trail-friendly geometry make the new Fathom E+ Jr. easy to handle for small riders. The frame is designed for an 80mm suspension fork and 26-inch wheels. Here’s a look at some of the key technologies in this purpose-built E-bike for young riders.
Aluxx Aluminum Frame
This state-of-the-art aluminum material is made predominantly from 6011 alloy and delivers best-in-class strength-to-weight ratios. The frameset also features unique welding technologies for a high-performance ride quality.
Hybrid Cycling Technology
This innovative system 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 Pro motor.
SyncDrive Sport Motor
The compact SyncDrive Sport motor has Smart Assist technology and is sonically tuned for smooth, quiet performance. It’s an ideal choice for riders seeking a versatile, do-it-all E-bike experience.
RideControl ONE offers optimized controls and a clean handlebar layout. The robust buttons are designed to use in all conditions with a comfortable feel and grip. The controls are thoughtfully designed with new LED lighting that shows your battery level and support.
Six smart sensors precisely measure the power being applied to the pedals so the motor can provide just the right amount of assistance to create a natural, powerful riding experience. This helps optimize energy efficiency for both the rider and the battery system.
RideControl Ergo can wirelessly connect with the RideControl App so your smart phone can function as a display for ride data and system updates.
Designed for stability and control, these 26-inch wheels offer a balanced ride quality for young riders.
This integrated battery system is positioned within the downtube of the frame. Continuous communication between the battery and charger provides fast charging. Batteries can charge up to 80 percent in 2.2 hours.
80mm of travel up front helps smooth out rough trails, giving young riders greater confidence and control.
Sizing Guide and Geometry
Sizing to be used as a reference only. Please check with a local authorized Liv or Giant dealer to determine the correct size. Available sizes may vary from country to country.
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)
Stem Length (mm)(inch)
Crank Length (mm)(inch)
Technologies & Features
ALUXX Aluminum Technology
This Performance level frame material features 6061 alloy with single-butted tubes to produce strong, lightweight framesets for a variety of different bikes and riding styles.
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.
Innovation, manufacturing expertise and a motor system powered by Yamaha all combine to expand any rider’s abilities. SyncDrive Sport offers three support modes and is equipped on E-bikes that are used for both everyday riding and for more demanding off-road riding. This small mid-drive motor delivers a massive maximum 80Nm of torque and is widely acclaimed for its performance and reliability.
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.
Giant’s latest EnergyPak battery systems feature streamlined designs that are integrated with the E-bike for a sleek and modern profile. Giant E-bikes offer several different EnergyPak options including the EnergyPak Smart and EnergyPak. Each one is designed to optimize the E-bike experience for a specific style of riding.