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With effortless efficiency and quiet compliance, this Giant Defy Advanced 2 is a lightweight endurance road machine which helps you ride stronger and longer.
With effortless efficiency and quiet compliance, this Giant Defy Advanced 2 is a lightweight endurance road machine which helps you ride stronger and longer.
Giant

2025 Giant Defy Advanced 2 - 105 Equipped Road Bike - Gloss Carbon Smoke / Mercury

£2,699.00
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With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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2025 Giant Defy Advanced 2 - 105 Equipped Road Bike - Gloss Carbon Smoke / Mercury

Season:2025

Brand:Giant

Code:9031012CBN

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 minimise fatigue.

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 minimises 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 optimised for high-volume tubeless tyres (up to 38mm), providing predictable handling and stability from asphalt to cobbles.

Technical Information
  • Frame
  • Sizes
    X-Small (410mm), Small (445mm), Medium (480mm), Medium / Large (515mm), Large (535mm), X-Large (565mm)
  • Colours
    Gloss Carbon Smoke / Mercury
  • Frame
    Advanced-Grade Composite, 12x142mm thru-axle, disc
  • Forks and Shocks
  • Fork
    Advanced-Grade Composite, full-composite OverDrive steerer, 12x100mm thru-axle, disc
  • Rear Shock
    N/A
  • eSystem
  • Motor
    N/A
  • Controller
    N/A
  • Display
    N/A
  • Battery Type
    N/A
  • Battery Integration
    N/A
  • Conectivity
    N/A
  • Charger
    N/A
  • Drivetrain and Brakes
  • Brake System
    Shimano 105 hydraulic disc, MPH 160/140mm rotors
  • Rear Derailleur
    Shimano 105
  • Front Derailleur
    Shimano 105
  • Shifters
    Shimano 105 2x12
  • Bottom Bracket
    Shimano, press fit
  • Crankset
    Shimano FC-RS520, 34/50
  • Cassette
    Shimano 105, 11x36
  • Chain
    KMC X12L-1
  • Cockpit
  • Handlebar
    Giant Contact SL D-Fuse
  • Stem
    Giant Contact Aerolight
  • Grips
    Giant Stratus Lite 3.0
  • Headset
  • Wheels
  • Front Hub
    Giant alloy, 12mm thru-axle
  • Rear Hub
    Giant alloy, 12mm thru-axle
  • Rim
    Giant P-R2 Disc wheelset, alloy, [F]25mm, [R]25mm
  • Front Tyre
    Giant Gavia Fondo 1, tubeless, 700x32c (33.5mm), folding
  • Rear Tyre
    Giant Gavia Fondo 1, tubeless, 700x32c (33.5mm), folding
  • Finishing Kit
  • Seatpost
    Giant D-Fuse, composite, 14mm offset
  • Saddle
    Giant Approach
  • Pedals
    Not supplied: Shop pedals here
  • Extras
  • Kickstand
    N/A
  • Lighting
    N/A
  • Lock
    N/A
  • Carrier
    N/A
  • Mudguards
    N/A
  • Other
    N/A
  • Please Note:
    Every effort has been made to ensure accuracy throughout this website. However, manufacturers reserves the right to change bike specifications, features, prices and colours without prior notice. If you would like to check the specification of a bike before purchasing, please call one of our stores.
Sizing Information

Size Guide

Frame SizeRider height (cm)Rider height (feet)
XS157 - 1695’2” - 5’7”
S165 - 1755’3” - 5’9”
M171 - 1815’7” - 5’11”
M / L177 - 1875’10” - 6’2”
L183 - 1936’0” - 6’4”
XL189 - 1996’2” - 6’6”

Frame Geometry


XSSMM / L
L
XL
ASeat Tube Length (mm)410445480515535565
BSeat Tube Angle74.5°74.0°73.5°73.0°73.0°73.0°
CTop Tube Length (mm)515530545560575595
DHead Tube Length (mm)120140150175195215
EHead Tube Angle70.5°71.8°72.5°72.5°72.5°72.5°
FFork Rake (mm)505050505050
GTrail (mm)71.663.458.658.658.658.6
HWheel Base (mm)995994998101010251040
IChain Stay Length (mm)420420420420420420
JBottom Bracket Drop (mm)757575707070
KStack (mm)527541558577596615
LReach (mm)369375380384393402
MStand Over Height (mm)705733762796814841
NHandlebar Width (mm)400400420420440440
OStem Length (mm)8090100100110110
PCrank Length (mm)170170172.5172.5175175
QWheel Size700c700c700c700c
700c
700c
Professional Opinion
  • Advanced Composite Technology
    Giant’s High Performance Grade raw carbon material is used to produce this custom frame material in our own composite factory with a high stiffness-to-weight ratio. The front triangle of these framesets is assembled and molded as one continuous piece in a proprietary manufacturing process called Modified Monocoque Construction.
  • D-Fuse Technology
    The D-Fuse seatpost and handlebar were designed to function as a system, absorbing road shocks and vibrations so you can ride farther, faster
  • OverDrive
    Giant’s original oversized fork steerer tube technology. Designed to provide precise front-end steering performance, the system’s oversized headset bearings (1 1/4” lower and 1 1/8” upper for road, 1 1/2” lower and 1 1/8” upper for mountain) and tapered steerer tube work in conjunction to provide optimal steering stiffness.
  • Tubeless System
    Fewer flat tires. Greater traction. Less rolling resistance and a smoother, faster ride. Giant’s Tubeless System makes it easier than ever to experience all these benefits.
  • Compact Road
    Introduced by Giant with the professional Team ONCE in the 1990s, Compact Road revolutionized the look and feel of high-performance road bikes forever. A downward sloping toptube (from the headtube to the seattube) creates smaller front and rear triangles for a lighter, stiffer bike. It also makes it easier for riders of all sizes to have a perfect fit.
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