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Giant Fathom E+ 1 Pro

Giant Fathom E+ 1 Pro
Metallic Red/Black
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The Fathom E+ Pro is built on a lightweight ALUXX SL aluminum frame with trail-friendly geometry. It has a 500Wh EnergyPak that’s integrated into the downtube and the RideControl ONE handlebar control buttons. Smooth looks and even smoother performance. 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 tunable power, and you can adjust it exactly the way you want. The frame is designed for and fitted with a 120mm suspension fork, and the Giant E-bike App connects you with health, fitness, and navigation functions.

Integrated design
500Wh EnergyPak is integrated into the downtube, and RideControl ONE handlebar control buttons connect with an E-bike-specific App for health, fitness and navigation functions.

Total control
SyncDrive Pro motor technology gives you 360 percent tunable power so you can adjust your E-bike to ride just the way you like.

Responsive hardtail handling
Aluminum frame is designed for and fitted with a 120mm suspension fork for smooth off-road control.

- ALUXX SL aluminum frame
- Rock Shox Recon RL fork
- SRAM SX Eagle drivetrain
- Shimano MT400 brakes
- Giant AM wheels
- Giant SyncDrive Pro motor

Wider than standard yet narrower than fat, plus-size rims and tires hit the sweet spot in grip, stability, and speed, giving you more confidence on technical terrain. Compared to a standard tire you’ll feel grip in places you wouldn’t expect thanks to a bigger contact patch and greater rollover clearance. More air volume allows lower tire pressures which softens bumps and increases float on sand or snow. Whether you’re a novice or an expert, the benefits of plus-size tires and rims will amplify your mountain biking fun.


Electronic drivetrain systems deliver excellent shifting, easy set up, and solid battery life. Here are the highlights of today’s electronic shifting systems:

Shifting Performance
Electronic shifting systems use powerful servomotors to rapidly shift the chain. Because microprocessors and sensors constantly monitor every aspect of the system, they shift with precisely and without chain rub.

Many major systems have customizable shifting. Some have the ability to add remote shifters for common riding positions, and some even allow you to change the functions of the shifting buttons.

Electronic groupsets are responsive and consistent. There are no cables to stretch and wear out, so you get a flawless shift every time. The added bonus is you’ll never have to replace a derailleur cable ever again.


Motor Giant SyncDrive Pro
Battery Giant EnergyPak 500, 36V 13.8Ah integrated Lithium-Ion
Display Giant RideControl ONE
Max Assisted Speed 20mph
Charger Giant EnergyPak 6A Smart charger Tubeless kit
Frame ALUXX SL aluminum, Overdrive 1 1/2 - 1 1/8" head tube, integrated KS18 kickstand mount
Fork Rock Shox Recon RL 120mm travel, Tapered 1 1/2 - 1 1/8" steerer, lockout
Axles Front: 15 x 110mm Boost thru-axle
Rear: 12 x 148mm Boost thru-axle
Rims/Wheels Giant AM 27.5+, Tubeless ready, 35mm inner width
Hubs Giant eTracker Boost, Sealed cartridge bearing, 6-bolt
Spokes Sapim Race (front), Sapim E-Lite (rear)
Tires Maxxis Forekaster 27.5 x 2.6", foldable, 60 TPI, EXO, Tubeless Ready
Crankset SRAM X-Sync chainring Praxis e-Cadet+ custom forged crankarm set
Chainrings 38T
Chain SRAM SX Eagle
Rear Derailleur SRAM SX Eagle
Cassette/Rear Cogs SRAM Eagle PG-1210, 11-50T, 12-Speed
Shifters SRAM SX Eagle
Handlebars Giant Connect TR Riser 31.8x780mm
Stem Giant Contact
Brake Levers Shimano MT401 Hydraulic Disc
Brakes Shimano MT400, Hydraulic Disc, 180/203mm
Saddle Giant Sport
Seatpost Giant 30.9mm, 2-bolt Micro Adjustable, Forged Aluminium

* Subject to change without notice.

Part Numbers

Option UPC MPN
Metallic Red/Black / Small 04712878517615 2003354154
Metallic Red/Black / Medium 04712878517622 2003354155
Metallic Red/Black / Large 04712878517639 2003354156