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OverDrive

Giant’s original oversized fork steerer tube technology. Designed to provide solid front-end steering performance, the system’s oversized headset bearings and tapered steerer tube work in conjunction to provide optimal steering stiffness.

PowerCore

A massively oversized bottom-bracket/chainstay area features a fully integrated, 86-millimeter-wide bottom-bracket design. Asymmetric chainstays provide additional stiffness on the driveside and stability on the non-driveside.

FluidForm

Raw ALUXX SL tubesets are further refined through a complex series of processes that provide strength (extrusion), weight reduction (butting) and shape (forming). Two key Giant technologies—FluidForming and press forming work together to eliminate gussets, improve stiffness and minimize any extra weight.

Gusset-Free Design

Most of Giant’s competitors use old-fashioned gussets, additional pieces of material that are welded to the outside of a tube junction to provide additional support. Giant pioneered and perfected the use of radically shaped tubesets that provide all the strength and stability of gusseted tubes without added material and welds.

ALUXX SL Aluminum

Formed from raw materials in Giant’s own forging facility, this proprietary alloy features 30 percent additional stiffness over traditional 6061-series aluminum. The increased stiffness allows engineers to use less material throughout the tubes, which results in lighter frames that never sacrifice strength or durability.

Defy 3

Model year 2013

$915

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Overview

ALUMINUM ENGINEERING AT ITS VERY BEST. LIGHT, LIVELY AND PERFECTLY BALANCED BETWEEN PERFORMANCE AND COMFORT.

Brought to you by the world’s leading aluminum frame engineers, Defy redefines the performance possibilities of an entry-level road bike. Made from premium lightweight aluminum tubes and produced in Giant’s own forging facility, it climbs, corners and sprints better than bikes costing thousands more.

Related Models

See matching Women's model

 

Features

Key Upgrades (over Defy 5)

  • Shimano Sora 9-speed shifting
  • Advanced-Grade composite fork with alloy OverDrive steerer
  • Sizes: XS, S, M, M/L, L, XL
  • Color: Black/White/Silver

Technologies

ALUXX

PERFORMANCE GRADE

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ALUXX

PERFORMANCE GRADE

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Specifications

Frame

SizesXS, S, M, M/L, L, XL
ColorsBlack/White/Silver
FrameALUXX-Grade Aluminum
ForkAdvanced-Grade Composite, Alloy OverDrive Steerer
Shock N/A

Components

HandlebarGiant Sport, 31.8
StemGiant Sport
Seatpost Giant Sport, 30.9
Saddle Giant Performance Road, Men's
PedalsCaged w/ Toe Clip and Strap

Drivetrain

ShiftersShimano Sora
Front DerailleurShimano Sora
Rear DerailleurShimano Sora
BrakesTektro TK-R312 Giant Specific, Dual Pivot
Brake LeversShimano Sora
CassetteShimano HG50 12x27, 9-Speed
ChainKMC HG-73
CranksetFSA Tempo, 34/50
Bottom BracketFSA, Sealed Cartridge

Wheels

RimsGiant S-R2, Double Wall
HubsGiant 24/28h
SpokesStainless Steel, 14g
TiresGiant SR-4, 700x25

Other

WeightThe most accurate way to determine any bike’s weight is to have your local dealer weigh it for you. Many brands strive to list the lowest possible weight, but in reality weight can vary based on size, finish, hardware and accessories. All Giant bikes are designed for best-in-class weight and ride quality.

Geometry

SizeHead AngleSeat AngleTop TubeReachHead TubeStackChain StayWheel BaseStandover Height
CentimetersDegreesDegreesCentimetersCentimetersCentimetersCentimetersCentimetersCentimetersInches
XS/43.071.074.051.5N/A12.5N/A42.098.329.0
S/46.572.074.053.0N/A14.5N/A42.099.029.7
M/50.072.573.554.5N/A16.5N/A42.099.530.6
M/L53.572.573.056.0N/A18.5N/A42.0100.731.1
L/55.572.573.057.5N/A20.5N/A42.0102.232.0
XL/58.572.572.559.5N/A22.5N/A42.0103.732.8

All specifications and prices listed are subject to change without notice.