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Size Options & Purchase
Important lead time information
Where delivery times are stated as an ETA month this is based on the latest information from the manufacturer. These dates should be treated as a guide and may be subject to change. Due to an increased strain in global supply chains, factory and shipping schedules can be easily disrupted.
Should you place a future order with us we will monitor the bike’s ETA and keep you informed of any changes.
For more detailed information please read here.
Giant's Fathom is a trail ready hardtail designed to put a smile on your face. The combination of a lightweight hardtail frame, 130mm suspension fork and 27.5 wheels with wide rims and high-volume tyres delivers loads of traction, speed and fun on the trail.
With its updated ALUXX SL aluminium frame, quick-handling 27.5 wheels and high-volume tyres, Fathom is a great choice for technical terrain and singletrack shredding. It blends the efficient ride quality of a classic hardtail with the confident ride quality of larger tyres that absorb bumps and give you more traction-so you can tackle rougher trails with total control. The frame is designed with trail-friendly geometry that includes a more relaxed head angle and a 130mm suspension fork.
ALUXX SL aluminium frameset is hand-built in-house by the world leader in aluminium engineering.
Frame geometry is designed to optimise the confident, stable handling of plush high volume tyres (27.5x2.6), and is ideal for rugged, adventurous terrain.
More relaxed frame geometry (compared to XC) and control-focused components deliver added control for trail riding conditions.
Complete with Giant's Contact Switch dropper post for those bigger drops.
Set up tubeless from the factory for fewer punctures and more grip.
Please note: This model features tubeless ready wheels and tyres which offer a superior ride and less rolling resistance than traditional innertubes. This system requires tyre sealant to function correctly and this will be fitted in our workshop prior to despatch. The nature of this sealant means that the tyre may not be fully sealed until it has been ridden a short distance and therefore the bicycle may arrive with reduced pressure in the tyres. Please check the bicycle's tyres are inflated to the recommended pressure before cycling.
IMPORTANT: This bicycle is supplied without pedals.
IMPORTANT: This bicycle requires a suspension pump to set and tune its suspension correctly. This is not included as standard.
ALUXX SL-Grade Aluminum
Giant Crest 34 SL RCL, 130mm, 44mm offset, Boost 15x110
SRAM SX Eagle, 1x12
SRAM NX Eagle
SRAM DUB, press fit
SRAM SX Eagle, 30t S:165mm, M:170mm, L:170mm, XL:170mm
SRAM SX Eagle, 11x50
SRAM SX Eagle
Shimano BR-MT420/410, hydraulic, Shimano RT-26 rotors [F]180mm, [R]180mm
Rims: Giant AM 27.5, tubeless ready sleeve-joint rim, 30mm inner width, Hubs: Alloy, sealed bearing
Maxxis Ardent Race 27.5x2.6, folding, TR
Giant Contact TR35, 780x35mm
Giant Contact SL 35 S:40mm, M:40mm, L:50mm, XL:50mm
Giant Contact Switch dropper, remote S: 125mm travel / 30.9 x 395mm M: 125mm travel / 30.9 x 395mm L: 150mm travel / 30.9 x 440mm XL: 170mm travel / 30.9 x 450mm
Factory tubeless set up
We are an authorised Giant dealer and supply this Giant Fathom 1 with a LIFETIME manufacturer's warranty. Read Warranty Terms
Sizing information is provided as a general guide only. This is based on the average rider riding the bicycle in the style for which it is intended. This takes no account of a rider's personal proportions, physique, flexibility and biomechanics. If your height places you on, or near, a bicycle size step then we recommend you consider both sizes. All bicycles offer a range of handlebar and saddle adjustment which will enable you to fine tune your riding position once the correct size has been established. If you are unsure on sizing, we strongly recommend you visit our store so we can assist you. Pedal On offers advice and information on sizing in good faith, the final decision and responsibility on which size to purchase is yours.
The following finance options are available to apply for online immediately. If you are collecting your bicycle in store you can arrange your finance prior to visiting the store by selecting the required finance method as well as Click & Collect.