Giant Fathom E+ 3 29er 2021 - Electric Mountain Bike
Take control of the trail with this fun new hardtail E-bike. Now you can climb with greater ease and ride farther—the perfect formula for an enjoyable day on the trail.
The Fathom E+ is a great choice for XC and singletrack terrain. A lightweight ALUXX SL aluminium frame and trail-friendly geometry can help you experience trail riding like never before. The SyncDrive Sport motor technology delivers smooth, instantaneous power to conquer hills with a smile. New this year is the EnergyPak Smart Compact battery with range extender compatibility.
Featuring a 120mm suspension fork and the confident performance of 29-inch wheels and tubeless tyres, it offers balanced control and handling. The side-release EnergyPak Smart is seamlessly integrated into the frame and can be easily removed for charging. And it’s simple to control all your settings with the handlebar mounted RideControl ONE featuring EVO display compatibility.
Smooth power delivery
The SyncDrive Sport motor technology delivers smooth, instantaneous power to conquer all kinds of terrain and have more fun.
Balanced, confident handling
Lightweight aluminium frame with trail-friendly geometry, 120mm of front suspension travel, and stable 29-inch wheels with tubeless tyres puts you in control on off-road terrain.
Long-lasting battery
Integrated EnergyPaki compact battery is easy to charge.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | ALUXX aluminum, Overdrive 1½ - 1⅛" head tube, 141mm Boost QR, integrated KS18 kickstand mount |
| Fork | SR Suntour XCM 32 NLO DS 15AH2 29" 120mm travel, Tapered 1½ - 1⅛" steerer, lockout |
| Stem | Giant Contact |
| Bars | Giant Connect TR Riser 31.8x750mm |
| Front Brake | Tektro HD-M285, hydraulic disc, 180mm |
| Rear Brake | Tektro HD-M285, hydraulic disc, 180mm |
| Brake Lever | Tektro HD-M285 |
| Rear Mech | Shimano Deore, 9-Speed |
| Shifters | Shimano Altus 1x9 |
| Speed | 9 |
| Rims | Giant XCT 29 Tubeless Ready 25mm e-bike optimised |
| Front Hub | Giant eTracker Sport, 15mm Thru-Axle |
| Rear Hub | Giant eTracker Sport, 141mm QR, e-bike optimised |
| Spokes | Stainless steel |
| Front Tyre | Maxxis Ardent 29x2.4", EXO, 60 TPI |
| Rear Tyre | Maxxis Ardent 29x2.4", EXO, 60 TPI |
| Seat Post | Giant 30.9mm, 2-bolt Micro Adjustable, Forged Aluminium |
| Saddle | Giant Sport |
| Chainset | Forged Alloy minimal Q-factor, 36T Steel Direct Mount ring |
| Chain | KMC e.9 Sport, e-bike optimized |
| Cassette | Shimano CS-HG200, 11-36T, 9-speed |
| Pedals | Aluminum Platform |
| Battery Size (WH) | Giant EnergyPak 400Wh |
| Motor | Giant SyncDrive Sport, 70Nm, 350% tuneable support with automatic smart support |
| User Interface | Wireless display compatible |
Giant Fathom E 2021 Size Chart
|
Inside Leg (Inches) Vs Rider Height (Feet & Inches) |
26” |
27” |
28” |
29” |
30” |
31” |
32” |
33” |
34” |
35” |
36” |
37” |
|
5’ 3” |
|
|
S |
S |
S |
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5’ 4” |
S |
S |
S |
S |
S |
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5’ 5” |
S |
S |
S |
S |
S |
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5’ 6” |
|
S |
S |
S |
S |
S |
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5’ 7” |
|
|
S |
S |
S |
M |
M |
|
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5’ 8” |
|
|
|
M |
M |
M |
M |
M |
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5’ 9” |
|
|
|
M |
M |
M |
M |
M |
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5’ 10” |
|
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|
|
M |
M |
M |
M |
M |
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5’ 11” |
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|
M |
M |
M |
M |
M |
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6’ 0” |
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|
M |
M |
L |
L |
L |
|
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6’ 1” |
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L |
L |
L |
L |
L |
|
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6’ 2” |
|
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|
L |
L |
L |
L |
L |
|
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6’ 3” |
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|
|
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|
L |
L |
L |
L |
L |
|
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6’ 4” |
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|
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|
|
L |
L |
XL |
XL |
XL |
Giant Fathom E 27.5 Geometry
| S | M | L | XL | |
|---|---|---|---|---|
| SEAT TUBE LENGTH (mm) | 405 | 465 | 505 | 535 |
| SEAT TUBE ANGLE | 73.0° | 73.0° | 73.0° | 73.0° |
| TOP TUBE LENGTH (mm) | 575 | 600 | 625 | 650 |
| HEAD TUBE LENGTH (mm) | 105 | 115 | 125 | 140 |
| HEAD TUBE ANGLE | 68.0° | 68.0° | 68.0° | 68.0° |
| FORK RAKE (mm) | 46 | 46 | 46 | 46 |
| TRAIL (mm) | 101.1 | 101.1 | 101.1 | 101.1 |
| WHEELBASE (mm) | 1140 | 1166 | 1192 | 1218 |
| CHAIN STAY LENGTH (mm) | 475 | 475 | 475 | 475 |
| BOTTOM BRACKET DROP (mm) | 45 | 45 | 45 | 45 |
| STACK (mm) | 617 | 626 | 635 | 649 |
| REACH (mm) | 386 | 408 | 430 | 451 |
| STAND OVER HEIGHT (mm) | 753 | 760 | 787 | 791 |
| HANDLEBAR WIDTH (mm) | 780 | 780 | 780 | 780 |
| STEM LENGTH (mm) | 50 | 60 | 60 | 70 |
| CRANK LENGTH (mm) | 165 | 170 | 170 | 170 |
| WHEEL SIZE | 27.5+ | 27.5+ | 27.5+ | 27.5+ |
Giant Fathom E 29 Geometry
| M | L | XL | |
|---|---|---|---|
| SEAT TUBE LENGTH (mm) | 465 | 505 | 535 |
| SEAT TUBE ANGLE | 73.0° | 73.0° | 73.0° |
| TOP TUBE LENGTH (mm) | 600 | 625 | 650 |
| HEAD TUBE LENGTH (mm) | 115 | 125 | 140 |
| HEAD TUBE ANGLE | 68.0° | 68.0° | 68.0° |
| FORK RAKE (mm) | 51 | 51 | 51 |
| TRAIL (mm) | 95.7 | 95.7 | 95.7 |
| WHEELBASE (mm) | 1171 | 1197 | 1223 |
| CHAIN STAY LENGTH (mm) | 475 | 475 | 475 |
| BOTTOM BRACKET DROP (mm) | 45 | 45 | 45 |
| STACK (mm) | 626 | 635 | 649 |
| REACH (mm) | 408 | 430 | 451 |
| STAND OVER HEIGHT (mm) | 760 | 787 | 791 |
| HANDLEBAR WIDTH (mm) | 780 | 780 | 780 |
| STEM LENGTH (mm) | 60 | 60 | 70 |
| CRANK LENGTH (mm) | 170 | 170 | 170 |
| WHEEL SIZE | 29 | 29 | 29 |
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