Riding on new trails. Exploring the backwoods. Catching the scenery. Have fun doing it. That's why Giant built the Fathom 1.
Giant's Fathom 1 was not built as a hardcore race machine. Could you race it? Sure! But it was built for the simple pleasure of off-road riding without overly complicated suspension and a high price tag. For most of us, that's plenty. The fit is a bit more upright, and the handling is stable and predictable; perfect for fun while getting dirty. Giant's ALUXX SL-Grade aluminum makes up the Fathom 1's frame, giving the bike a light feel, while offering rock-solid handling and power delivery. A tapered head tube adds and extra dash of handling precision, especially in tight and twisty singletrack. Internal cable routing gives the Fathom 1 a clean, sleek look. multiple bottle mounts add to the Fathom 1's versatility. An air-adjustable Giant Crest SL RCL suspension fork soaks up technical rock gardens with 130mm of travel. With a 66 degree head tube angle matched with the Crest 34, the Fathom 1 will bring confidence and control to every descent!
When Giant decided to equip the flagship of the Fathom line, they didn't mess around. SRAM's 12-speed SX Eagle shifter and rear NX Eagle derailleur deliver gear changes with lightning speed. An alloy SRAM SX Eagle crankset gets a 30T Direct Mount chainring, providing outstanding power transfer. A SRAM Eagle 11-50T cassette provides a massive gearing range for hilly trails on day-long rides. All this might seem like the component spec on a race bike, but it still makes perfect sense when you just want to enjoy the trails.
Big, meaty tires are what makes the Fathom 1 such a blast. Maxxis supplies the tubeless-ready Ardent Race 27.5x2.6" tires that bite into loose singletrack, gravel and mud with ease. Giant AM 27.5 tubeless alloy wheels anchor those tires with a 30mm interior width, bringing precise handling to twisty trails. Shimano BR-MT420 hydraulic disc brakes help reign in speed in all conditions, rain or shine (or mud). Giant's Contact Switch dropper post helps get the Romero saddle out of the way with a bar-mounted remote lever. An alloy Contact stem and handlebar finishes off the cockpit of this fun-loving machine.
|SEAT TUBE LENGTH (mm)||380||430||465||495|
|SEAT TUBE ANGLE||75.0°||75.0°||75.0°||75.0°|
|TOP TUBE LENGTH (mm)||592||612||639||662|
|HEAD TUBE LENGTH (mm)||95||95||105||115|
|HEAD TUBE ANGLE||66.0°||66.0°||66.0°||66.0°|
|FORK RAKE (mm)||44||44||44||44|
|CHAIN STAY LENGTH (mm)||435||435||435||435|
|BOTTOM BRACKET DROP (mm)||60||60||60||60|
|STAND OVER HEIGHT (mm)||730||745||765||790|
|HANDLEBAR WIDTH (mm)||780||780||780||780|
|STEM LENGTH (mm)||40||40||50||50|
|CRANK LENGTH (mm)||165||170||170||170|
|Small||163 cm to 172 cm|
|Medium||171 cm to 180 cm|
|Large||179 cm to 188 cm|
|X-Large||187 cm to 198 cm|
Due to supply-chain issues, Specs are subject to change without notice.
|Frame||ALUXX SL-Grade Aluminum|
|Fork||Giant Crest 34 SL RCL, 130mm, 44mm offset, Boost 15x110|
|Wheels||RIMS Giant AM 27.5, tubeless ready sleeve-joint rim, 30mm inner width|
|Rims||Giant AM 27.5, tubeless ready sleeve-joint rim, 30mm inner width|
|Tires||Maxxis Ardent Race 27.5x2.6", folding, TR|
|Bottom Bracket||SRAM DUB, press fit|
|Crankset||SRAM SX Eagle, S:165mm, M:170mm, L:170mm, XL:170mm|
|Shifters||SRAM SX Eagle, 1x12|
|Rear Derailleur||SRAM NX Eagle|
|Cassette/Freewheel||SRAM SX Eagle, 11-50T|
|Chain||SRAM SX Eagle|
|Brakes||Shimano BR-MT420/410, hydraulic disc|
|Rotors||Shimano RT-26 rotors [F]180mm, [R]180mm|
|Brake Levers||Shimano BR-MT401, hydraulic|
|Handlebars||Giant Contact alloy TR35|
|Stem||Giant Contact SL 35, alloy S:40mm, M:40mm, L:50mm, XL:50mm|
|Seatpost||Giant Contact Switch dropper w/bar remote, 30.9mm dia.|
|Accessories & Extras||tubeless prepared, 2.6" max tire size, 32t max chainring size|
* Subject to change without notice.