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Fathom E+ EX

This versatile new E-bike combines the flat handlebar control and front suspension of a mountain bike with the built-in utility of a city bike. With integrated lights, fenders and a rear rack for cargo, the Fathom E+ EX is made for active lifestyles.

Key Performance Factors

Integrated design

750Wh EnergyPak is integrated into the down tube. The RideControl Dash handlebar has display compatibility and control buttons mounted on the handlebar.

Total control

New SyncDrive Pro 2 motor technology gives you 400 percent of tunable power so you can adjust your E-bike to ride just the way you like. A 130mm suspension fork helps smooth out rough roads and bumpy bike paths.

Off-road accessories

With built-in fenders, a rear rack and integrated lights, this hardtail can do double duty as an everyday trail riding bike or a practical companion for longer treks and adventure rides on dirt.

Range

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 Smart 750 / SyncDrive Pro 2 (2026)

  • Range
  • Extreme: 0 km 0 miles
  • Good: 0 km 0 miles
  • Ideal: 0 km 0 miles

Techs & Features

E+ System
Energypak
ALUXX SL Aluminijska Tehnologija
RideControl Dash
Smart Assist
SyncDrive
SyncDrive Pro 2

Sizing Guide and Geometry

Sizing to be used as a reference only. Please check with a local authorized 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.
  • S
      162 cm5’4”  to 172 cm5’8”
  • M
      169 cm5’7”  to 179 cm5’10”
  • L
      176 cm5’9”  to 186 cm6’1”
  • XL
      183 cm6’0”  to 193 cm6’4”
  • XXL
      190 cm6’3”  to 200 cm6’7”
bike diagram with measurements referenced in table that follows
Selection of a button will change the units measurement displayed throughout the entire sizing guide section.
 SMLXLXXL
A Seat Tube Length (mm) (inch)3801542016,546018,149519,553020,9
B Seat Tube Angle (degrees)75,0°75,0°75,0°75,0°75,0°
C Top Tube Length (mm) (inch)59023,26102463024,865025,667026,4
D Head Tube Length (mm) (inch)1104,31204,71305,11405,51505,9
E Head Tube Angle (degrees)66,0°66,0°66,0°66,0°66,0°
F Fork Rake (mm) (inch)512512512512512
H Wheelbase (mm) (inch)119747,1121948124148,9126249,7128450,6
I Chain Stay Length (mm) (inch)47018,547018,547018,547018,547018,5
J Bottom Bracket Drop (mm) (inch)652,6652,6652,6652,6652,6
K Stack (mm) (inch)64725,565625,866526,267426,568426,9
L Reach (mm) (inch)41616,443417,145117,846918,548619,1
N Handlebar Width (mm) (inch)75029,578030,778030,778030,778030,7
O Stem Length (mm) (inch)401,6401,6502502502
Q Wheel Size 29"29"29"29"29"
Specs
  • Motor
    Giant SyncDrive Pro 2 85Nm PedalPlus 6-Sensor technology
  • Controller
    Giant RideControl Dash 2, Smart Assist automatic mode, 5 support levels
  • Display
    Giant RideControl Dash 2, high-angle visibility, full color LCD display
  • Battery
    Giant EnergyPak Smart 750Wh
  • Charger
    Giant EnergyPak smart charger 4A
  • Connectivity
    Giant RideControl App enabled, ANT+ wireless display signal with e-bike profile
  • Sizes
    S, M, L, XL, XXL
  • Colors
    Good Grey
  • Frame
    ALUXX aluminum, Overdrive 1.125" - 1.8" head tube, 148x12mm Thru-axle, integrated KSA40 kickstand mount
  • Fork
    SR Suntour XCR34 2CR coil boost 130mm travel 15x110mm AH axle
  • Shock
    -
  • Handlebar
    Giant Connect TR Riser 31.8x750mm [S], 780mm [M-XXL]
  • Grips
    Giant Sole-O
  • Stem
    Giant Contact
  • Seatpost
    Giant Contact Switch Core dropper seatpost, 100mm travel
  • Saddle
    Giant Ergo Contact Trail, ESG
  • Pedals
    Anti-slip Platform
  • Shifters
    Shimano Cues
  • Rear Derailleur
    Shimano Cues 10-speed
  • Brakes
    Shimano MT200, hydraulic disc,180mm [F/R]
  • Brake Levers
    Shimano BL-MT200
  • Cassette
    Shimano Cues11-48T 10-speed
  • Chain
    Shimano Linkglide CN-LG500
  • Crankset
    Forged allumin direct-mount chainring steel 36T, Forged alumium crank arms
  • Rims
    Giant XCT 29 Tubeless Ready 25mm e-bike optimized
  • Hubs
    eTracker boost alloy 6-bolt disc 15x110mm[F] 12x148mm[R]
  • Spokes
    Stainless steel
  • Tires
    Maxxis Rekon 29x2.4", EXO, 60TPI
  • Lighting
    Giant Recon EL50 Axa BlueLine Steady E6 rear
  • Lock
    ABUS Xplus battery lock
  • Carrier
    Giant Rack-It MIK
  • Weight
    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.

All specifications listed are subject to change without notice.