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Giant Fathom 1 29ER 2019 Hardtail Mountain Bike


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Product Details

Giant Fathom 1 29ER 2019 -  Hardtail MTB

This top of the Giant Fathom 1 29er trail hardtail mountain bike comes appropriately equipped with a Shimano SLX 1x11-speed drivetrain.

Built on an ALUXX SL aluminum frame, Fathom 29 features updated geometry that produces a stable ride quality for challenging XC trails. The frame is optimized for a 100mm suspension fork giving you efficiency on the climbs and total control on the descents.

Key Features

  • The 1x11 drivetrain with its 30t chainring and 11-46 cassette offers all the gears you'll probably need in a simplified one-by format
  • SLX is one step up the Shimano hierarchy from Deore so built to closer tolerances
  • Shimano BR-MT400 [F] 180mm [R] 160mm, hydraulic disc
  • Fitted with tubeless tyres, previously reserved for Giant's Pro-quality £2,000-plus bicycles
  • Giant so believe in the benefits of tubeless tyres (improved cushioning, traction and puncture resistance) they are now fitting them as standard on more and more of their bikes from around £1,000 - More on tubeless tyres
  • The frame is built with Giant's lighter weight ALUXX SL Grade alloy tubing
  • Proper trail geometry


ALUXX SL aluminum frameset is hand-built in-house by the world leader in aluminum engineering.


Frame geometry is designed to optimize the balance and roll-over capabilities of 29-inch wheels.


Suspension fork offers 100mm of smooth travel for added XC control.

Giant Fathom 1 29er Size Guide

The sizing below is a guide only, so please get in touch if you're unsure or between sizes. Height is in feet and inches.

  • Small: 5' 3" - 5' 7"
  • Medium: 5' 7" - 6' 0"
  • Large: 6' 0" - 6' 4"
  • Extra Large: 6' 4" +

Why Buy From Us?

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  • No fuss returns
  • Bikes arrive built by expert bike mechanics
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Technical Specifications

Giant Fathom 1 29ER 2019 
FrameALUXX SL-Grade Aluminum
ForkSuntour Axon 32 LO-RC, 100mm travel, tapered steerer, low- compression and rebound adjust, QR 15x110mm
ShiftersShimano SLX, 1x11
Rear DerailleurShimano SLX, Shadow+
ChainsetPraxis Cadet, Boost, 30
Bottom BracketPraxis
ChainKMC X11-1
Cassette / FreewheelShimano SLX, 11x46
RimsGiant XCT 29, tubeless ready, sleeve-joint rim, 25mm inner width
Hubs[F] Giant Tracker Performance Boost 15x110mm, sealed bearing [R] Giant Tracker Sport Boost QR 141, loose ball
TyresMaxxis IKON 29x2.2 folding, 60 tpi, TR/EXO, tubeless
BrakesShimano BR-MT400 [F] 180mm [R] 160mm, hydraulic disc
Brake leversShimano BL-MT400
HandlebarsGiant Connect Trail, 780mm x 31.8mm
StemGiant Connect, 8-degree
SaddleGiant Contact (neutral)
SeatpostGiant Contact Switch dropper post with remote lever, 30.9mm


Our suppliers reserve the right to change specifications and prices without notice. Edinburgh Bicycle Cooperative will do all it can to maintain prices and specifications on this web site, however we do reserve the right to change specifications and prices without notice. Similarly, despite the wonders of modern computers, it is realistic to expect the colour of any item bought to differ subtly from the image online.