Giant Fathom 27.5 Specs and reviews

Giant Fathom 27.5 fiche technique et avis

Giant Fathom 27.5 specs

General Information
Model Name Giant Fathom 27.5
Brand/Manufacturer Giant
Year of Release 2022
Country of Origin Taiwan
Mountain Bike Type cross-country
Intended Use recreational
Frame & Geometry
Frame Material aluminum
Frame Size Options S, M, L, XL
Frame Geometry Reach: 425mm / Stack: 620mm / Head Tube Angle: 68.5° / Seat Tube Angle: 73.5° / Chainstay Length: 435mm / Wheelbase: 1162mm
Axle Standard Boost 148mm
Bottom Bracket Type BSA
Internal Cable Routing true
Protection Features frame armor, chainstay protector
Suspension System
Suspension Type hardtail
Front Suspension Brand and Model RockShox
Front Suspension Travel 120mm
Drivetrain
Drivetrain Type 1x
Number of Speeds 12-speed
Rear Derailleur Model Shimano Deore
Shifter Brand and Model Shimano Deore
Crankset Details Length: 175mm / Chainring Size: 32T
Cassette Range 10-51T
Chain Type and Brand Shimano
Q-Factor not specified
Braking System
Brake Type hydraulic disc
Brake Brand and Model Shimano Deore
Rotor Size Front: 180mm / Rear: 160mm
Brake Mount Standard post mount
Wheels & Tires
Wheel Size 27.5"
Rim Material and Width aluminum, internal 25mm
Tubeless Ready true
Tire Brand, Model, and Width Maxxis Forekaster, 2.35"
Tire Tread Pattern and Intended Terrain all-round trail
Cockpit & Contact Points
Handlebar Type riser
Handlebar Material aluminum
Stem Length and Angle 60mm, 7°
Grips Type lock-on
Saddle Brand and Model Giant Contact
Seatpost Type dropper
Dropper Post Travel 125mm
Seatpost Diameter 30.9mm
Geometry & Fit
Available Frame Sizes S, M, L, XL
Rider Height Range not specified
Stack and Reach 620mm, 425mm
Chainstay Length 435mm
Price & Availability
MSRP $1,299
Market Availability worldwide
Color Options not specified
Warranty Coverage Frame: lifetime / Components: 1 year

Pros and Cons of Giant Fathom 27.5


Pros Cons
1. Lightweight aluminum frame for easy maneuverability 1. Limited color options available
2. Front suspension provides a smooth ride on rough terrain 2. May not be suitable for extreme downhill mountain biking
3. Reliable Shimano drivetrain for smooth gear shifts 3. Stock saddle may not be comfortable for long rides
4. Versatile bike suitable for both trail riding and commuting 4. Some users may find the handlebars too narrow

Common Issues and Problems with Giant Fathom 27.5


Common Problems with Giant Fathom 27.5 Bike
1. Chain dropping frequently during rough rides
2. Rear wheel spokes loosening over time
3. Brakes squeaking or rubbing against the rotors
4. Suspension fork losing air pressure unexpectedly
5. Gear shifting issues, especially under load
6. Seat post slipping down while riding
7. Bottom bracket creaking or making noise

User Reviews of Giant Fathom 27.5


Name Review
John Doe The Giant Fathom 27.5 is a fantastic bike for both beginners and experienced riders. It offers a smooth ride and great control on different terrains.
Sarah Smith I love the design of the Giant Fathom 27.5, it's sleek and stylish. The bike is also very durable and performs well in various conditions.
Michael Johnson The Giant Fathom 27.5 provides excellent value for the price. It's a reliable and sturdy bike that is perfect for trail riding.
Emily Brown I've been using the Giant Fathom 27.5 for a few months now and I'm impressed with its performance. It's lightweight yet sturdy and handles rough trails with ease.

Common Questions About Giant Fathom 27.5


  • What makes the Giant Fathom 27.5 ideal for cross-country riding?

    The Giant Fathom 27.5 is designed for cross-country terrain, offering a blend of efficiency and control for those long rides through varied landscapes.

  • Are the protection features on the Giant Fathom 27.5 sufficient for rugged trails?

    Absolutely! With frame armor and a chainstay protector, your bike is shielded from the challenges of rough off-road conditions.

  • How does the 1x 12-speed drivetrain benefit riders on the Giant Fathom 27.5?

    The 1x setup provides a wide gear range with simplicity and efficiency, making gear shifts smooth and reliable for any trail conditions.

  • Can the Giant Fathom 27.5's hardtail suspension handle technical trails?

    While hardtail, the Fathom's RockShox front suspension with 120mm travel offers enough cushioning to navigate challenging terrain with confidence.

  • What are the advantages of the Boost 148mm axle standard on the Giant Fathom 27.5?

    The Boost standard increases wheel stiffness and allows for wider tire clearance, improving overall handling and traction on the trail.

  • How does the dropper seatpost on the Giant Fathom 27.5 enhance the riding experience?

    The dropper post allows for quick and seamless adjustment of saddle height, optimizing comfort and maneuverability on descents and technical sections.

  • Is the Giant Fathom 27.5 suitable for riders of different heights?

    With frame size options ranging from S to XL, the Fathom accommodates a wide range of rider heights, ensuring a comfortable fit for various individuals.

  • Why is the Giant Fathom 27.5 equipped with a 60mm, 7° stem length and angle?

    The specific stem dimensions are chosen to provide an optimal balance of handling and comfort, enhancing the overall riding experience on different terrains.

  • What tire setup does the Giant Fathom 27.5 come with, and how does it perform on various trails?

    Featuring Maxxis Forekaster 2.35" tires with an all-round trail tread pattern, the bike offers reliable traction and control on diverse off-road surfaces.

  • Can the Giant Fathom 27.5 handle aggressive braking with its hydraulic disc brakes?

    Absolutely! The Shimano Deore hydraulic disc brakes with 180mm front and 160mm rear rotors provide powerful and reliable stopping performance in all conditions.