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Go long. Go fast. Superlight and silky smooth, the flagship series of the new Defy range is back to reclaim its title as the pinnacle of endurance road. The perfect choice for the sportive or gran fondo that’s circled on your calendar.
Go long. Go fast. Superlight and silky smooth, the flagship series of the new Defy range is back to reclaim its title as the pinnacle of endurance road. The perfect choice for the sportive or gran fondo that’s circled on your calendar.
Giant

Giant - Defy Advanced SL 1 Endurance Road Bike in Gloss Moonstone

£5,949.00 £8,499.00 30% off
Size Guide
Pre-Order

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

If you are not completely satisfied with your purchase, or simply no longer want the item, you can return it for a full refund or exchange. Items (excluding food, underwear, and e-gift vouchers) may be returned for any reason within 30 days, as long as they are unused, in their original packaging, and accompanied by a valid proof of purchase.

Accessories Returns

Online or in-store purchases can be returned to any of our stores free of charge or can be returned by post or courier at your cost after completing the online returns form below. If your item is incorrect or damaged please contact us instead.

Complete Form

Bike / Bulky Returns

If you wish to return a bike or bulky item to us, please keep the box it arrived in and let us know by contacting our support team via our online webchat, email or by phone (01206 699311) and we will help arrange a collection. Bought or collected in store? Simply contact the store to get started.
FAQs
What happens if my item is faulty?
In the unlikely case that your item has developed a fault please contact us at [email protected] or call 01206 699311.
Can I cancel my order?
Yes, if we haven't shipped the order yet just contact us and we should be able to cancel the order for you. If it has already been shipped please refuse delivery, this will allow them to come back to us.
Can I return a bike?
We know that sometimes a short ride is what it takes to know if a bike is suitable. However, to be eligible for a full refund, the bicycle and its accessories must be clean and not display any damage or signs of wear, exceeding that which could be expected to establish that the bike is not suitable for the intended purpose.
I am returning a bike, can it be collected from home?
Yes, our courier collection fee is £30. However, you must use the original delivery packaging - if you do not have the original box, a new one will be sent at an additional cost of £60.
How do I return a product under warranty?
If you have a warranty issue, please contact us and we’ll guide you on the next steps. Please include your proof of purchase, as this is required for all warranty claims. Please Note: Not all faults are covered by warranty.

Giant - Defy Advanced SL 1 Endurance Road Bike in Gloss Moonstone

Season:2025

Brand:Giant

Code:9031018MoonBRN

Go long. Go fast. Superlight and silky smooth, the flagship series of the new Defy range is back to reclaim its title as the pinnacle of endurance road. It’s the perfect choice for the sportive or gran fondo that’s circled on your calendar.

Features:
  • 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 SL-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 - A new Contact D-Fuse handlebar features ergonomic shaping and an 8-degree flare for comfort and control on all-day rides. Wide, hookless carbon rims (22.4mm inner width) are optimised for high-volume tubeless tyres (up to 38mm), and a 36mm rim depth offers stable, predictable handling in crosswinds.
Technical Information
  • Frame
    Advanced SL-Grade Composite, 12x142mm thru-axle, integrated seatpost, disc
  • Fork
    Advanced SL-Grade Composite, full-composite OverDrive Aero steerer, 12x100mm thru-axle, disc
  • Handlebar
    Giant Contact SLR D-Fuse
  • Stem
    Giant Contact SLR AeroLight
  • Seatpost
    Giant D-Fuse SLR, composite, -5/+15mm offset
  • Saddle
    Giant Fleet SLR
  • Pedals
    PEDALS NOT SUPPLIED
  • Shifters
    SRAM Force eTap AXS 2x12
  • Front Derailleur
    SRAM Force AXS
  • Rear Derailleur
    SRAM Force AXS
  • Brakes
    SRAM Force hydraulic, SRAM PaceLine X rotors [F]160mm, [R]140mm
  • Brake Levers
    SRAM Force AXS
  • Cassette
    SRAM Force, 12-speed, 10x36
  • Chain
    SRAM Force D1
  • Crankset
    SRAM Force D2 DUB, 33/46 with power meter
  • Bottom Bracket
    SRAM, press fit
  • Rims
    Giant SLR 1 36 Carbon Disc WheelSystem
  • Hubs
    [F] Giant Low Friction Hub, CenterLock, 12mm thru-axle, [R] Giant Low Friction Hub, 30t ratchet driver, CenterLock, 12mm thru-axle
  • Spokes
    Sapim
  • Tyres
    CADEX Classics, tubeless, 700x32c (33.5mm), folding
  • Extras
    Out front computer mount, fender mount, water bottle cages, factory tubeless set up
  • Max Tyre Clearance
    40mm
Sizing Information
Frame SizeRider Height (cm)
XS157 cm to 169 cm
S165 cm to 175 cm
M171 cm to 181 cm
ML177 cm to 187 cm
L183 cm to 193 cm
XL189 cm to 199 cm
Sizing should be used as a reference only.

XSSMMLLXL
Seat Tube Length(MM)410445480515535565
Seat Tube Angle74.5°74.0°73.5°73.0°73.0°73.0°
Top Tube Length(MM)515530545560575595
Head Tube Length(MM)125135150175195215
Head Tube Angle70.5°71.8°72.5°72.5°72.5°72.5°
Fork Rake(MM)505050505050
Trail(MM)71.663.458.658.658.658.6
Wheelbase(MM)995994998101010251040
Chain Stay Length(MM)420420420420420420
Bottom Bracket Drop(MM)757575707070
Stack(MM)527541558577596615
Reach(MM)369375380384393402
Stand Over Height(MM)705733762796814841
Handlebar Width(MM)400400420420440440
Stem Length(MM)8090100100110110
Crank Length(MM)170170172172175175
Wheel Size700C700C700C700C700C700C

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