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Defy Advanced-Ui2

£3,999

On most models

Within 30 days

Starting From £35

With effortless efficiency and quiet compliance, this lightweight endurance road machine helps you ride stronger and longer. The composite frame and purpose-built components smooth out rough roads and minimize fatigue.

Key Performance Factors

FUNCTIONAL SIMPLICITY

Free of cumbersome gimmickry, the frameset is one of the lightest in its category. With a perfect balance of high-performance reactivity and all-day comfort, it offers a “less is more” experience for modern endurance road riding.

ENGINEERED COMPLIANCE

Advanced-grade composite frame and fork are specifically engineered for endurance road riding, delivering a smooth and efficient ride quality that minimizes fatigue on long rides. The new D-Fuse components work together to further absorb road shocks and vibrations.

TOTAL CONTROL

New Contact D-Fuse handlebar features ergonomic shaping and an 8-degree flare for comfort and control on all-day rides. Wide, alloy rims are optimized for high-volume tubeless tires (up to 38mm), providing predictable handling and stability from asphalt to cobbles.

Techs & Features

Advanced Composite Technology
D-Fuse Technology
Compact Road Design
Tubeless System

Sizing Guide and Geometry

Sizing to be used as a reference only. Please check with a local authorized dealer to determine the correct size.
Available sizes may vary from country to country.

Selection of a button will change the units measurement displayed throughout the entire sizing guide section.
  • XS
      160 cm5’3”  to 168 cm5’6”
  • S
      166 cm5’5”  to 174 cm5’9”
  • M
      172 cm5’8”  to 180 cm5’11”
  • ML
      178 cm5’10”  to 186 cm6’1”
  • L
      184 cm6’0”  to 192 cm6’4”
  • XL
      190 cm6’3”  to 198 cm6’6”
bike diagram with measurements referenced in table that follows
Selection of a button will change the units measurement displayed throughout the entire sizing guide section.
 XSSMMLLXL
A Seat Tube Length (mm) (inch)41016.144517.548018.951520.353521.156522.2
B Seat Tube Angle (degrees)74.5°74.0°73.5°73.0°73.0°73.0°
C Top Tube Length (mm) (inch)51520.353020.954521.55602257522.659523.4
D Head Tube Length (mm) (inch)1254.91355.31505.91756.91957.72158.5
E Head Tube Angle (degrees)70.5°71.8°72.5°72.5°72.5°72.5°
F Fork Rake (mm) (inch)502502502502502502
G Trail (mm) (inch)71.62.863.42.558.62.358.62.358.62.358.62.3
H Wheelbase (mm) (inch)99539.299439.199839.3101039.8102540.4104040.9
I Chain Stay Length (mm) (inch)42016.542016.542016.542016.542016.542016.5
J Bottom Bracket Drop (mm) (inch)753753753702.8702.8702.8
K Stack (mm) (inch)52720.754121.35582257722.759623.561524.2
L Reach (mm) (inch)36914.537514.83801538415.139315.540215.8
M Stand Over Height (mm) (inch)70527.873328.97623079631.38143284133.1
N Handlebar Width (mm) (inch)41016.141016.143016.943016.945017.745017.7
O Stem Length (mm) (inch)803.1903.51003.91003.91104.31104.3
P Crank Length (mm) (inch)1656.51656.51706.71706.7172.56.8172.56.8
Specs
  • Sizes
    XS, S, M, ML, L, XL
  • Colours
    Tempest Purple
  • Frame
    Advanced-Grade Composite, 12x142mm thru-axle
  • Fork
    Advanced-Grade Composite, Full-Composite OverDrive Steerer, 12x100mm thru-axle
  • Handlebar
    Contact SL D-Fuse XS: 410/380, S 410/380, M: 430/400, ML: 430/400, L: 450/420, XL: 450/420
  • Grips
    Stratus Lite 3.0
  • Stem
    Giant Contact AeroLight XS: 80, S: 90, M: 100, ML: 100, L: 110, XL: 110
  • Seatpost
    Giant D-Fuse Composite Offset 14mm
  • Saddle
    Giant Approach
  • Shifters
    Shimano Ultegra Di2 HRD
  • Front Derailleur
    Shimano Ultegra Di2
  • Rear Derailleur
    Shimano Ultegra Di2
  • Brakes
    Shimano Ultegra Di2 HRD, Shimano RT-CL700, [F]160[R]160
  • Brake Levers
    Shimano Ultegra Di2 HRD
  • Cassette
    Shimano CS-R8100, 11X34
  • Chain
    KMC X12L-1
  • Crankset
    Shimano Ultegra (R8100), 34/50 XS: 165, S: 165, M: 170, ML: 170, L: 172.5, XL: 172.5
  • Bottom Bracket
    Shimano, PressFit
  • Rims
    Giant SLR 2 40 Carbon Disc Wheel System
  • Hubs
    [F] Giant Alloy Hub, CenterLock, 12mm thru-axle, [R] Giant Alloy Hub, 3-pawl driver, CenterLock, 12mm thru-axle
  • Spokes
    Sapim
  • Tyres
    Giant Gavia Fondo 0 Tubeless, 700x32c (33.5mm effective), 170 TPI, Folding
  • Extras
    tubeless prepared, 40mm max tire size
  • Max Tyre Clearance
    40mm
  • Weight
    The 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 our bikes are designed for best-in-class weight and ride quality.

Every effort has been made to ensure accuracy throughout this website. However, Giant reserves the right to change bike specifications, features, prices and colours without prior notice.

Reviews

Every effort has been made to ensure accuracy throughout this website. However, Giant reserves the right to change bike specifications, features, prices and colours without prior notice.