Giant Defy 5 (2016) (Black/White)

This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
Fit, Fast, and Comfortable, the Giant Defy is the combination for the widest range of riders. Created by the world’s leading aluminum frame engineers, the award-winning Defy has earned its reputation for delivering big-time performance to everyday road riders. Born in Giant’s own in-house aluminum forging facility and engineered with ALUXX aluminum technology, it gives you the perfect blend of speed, comfort and control. Frame technologies include the OverDrive steerer tube for stiffness and sharp steering, plus a PowerCore oversized bottom bracket area for stiff, efficient power transfer.


  • Lightweight and durable ALUXX-grade butted aluminum frame
  • Aluminum fork with alloy OverDrive steerer
  • Giant SR-2 rims, Giant Sport Tracker hubs, stainless spokes
  • Shimano Claris 8-speed shifting
  • Tektro rim brakes

XS, S, M, M/L, L, XL
Colors: Black/White, Satin Black/Red
Frame: ALUXX grade aluminum
Fork: Aluminum, Alloy OverDrive steerer
Shock: N/A
Giant Connect, 31.8mm
Stem: Giant Sport
Seatpost: Giant Sport, 30.9mm
Saddle: Giant Performance Road
Pedals: N/A
Shimano Claris
Front Derailleur: Shimano Claris
Rear Derailleur:
Shimano Claris
Brakes: Tektro R312
Brake Levers: Shimano Claris
Cassette: SRAM PG850 11x32, 8-speed
Chain: KMC Z7
Crankset: FSA Tempo, 34/50
Bottom Bracket: Threaded, Sealed
Giant SR-2
Hubs: Giant Sport Tracker Road, [F] 24h [R] 28h
Spokes: Stainless Steel, 14g
Tires: Giant S-R4, 700x25
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 Giant bikes are designed for best-in-class weight and ride quality.


Features: 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 provide optimal steering stiffness. Road models feature 1 1/8-inch top and 1 1/4-inch bottom bearings, while the mountain version features 1 1/8-inch top and 1 1/2-inch bottom bearings.

OverDrive provides up to 15 percent more torsional steering stiffness than straight steerer-tube designs. This translates into much more accurate steering input from a rider’s hands, through the handlebar and stem, and down to the front wheel. Whether hammering uphill or carving through a corner, OverDrive transmits input directly to the front wheel for more precise handling.


Lightweight framesets featuring optimized strength-to-weight ratios

  • 6061 alloy for optimized strength-toweight ratios

Forming methods

  • Single butting results in light weight without sacrificing strength
  • Predominantly features PressForming

Welding techniques

  • Predominantly features Standard and some Smooth welding techniques for optimized strength and weight

Compact Road Design:

In the late 1990s Giant pioneered a radical new frame shape to give its professional road racers a competitive edge. Driven by a desire to create lighter and faster bikes, Giant's Compact Road Design changed the look—and the performance capabilities—of competitive road bikes forever.

Now, 17 years later, Compact Road Design is still the standard in high-performance bikes. The concept is simple: A toptube that slopes downward from the headtube to the seattube reduces the size of the front and rear triangles. Smaller triangles create a lighter, stiffer bike.

Whatever the frame material, aluminum or composite, Compact Road Design improves the ride. Here's how:

Compact Road’s most distinctive feature, the downward-sloping toptube, results in smaller front and rear triangles on the frame. Because the triangles are smaller, less material is needed. Less material equals less weight.

Picture two triangles made from equal diameter tubing. The smaller, more compact triangle uses shorter tubes. The larger triangle requires longer tubes. It’s easy to see which is more structurally sound—the smaller triangle is stiffer, less susceptible to flexing and twisting. And on a performance road frame, stiffer is faster.

With traditional geometry, builders increase stiffness by using stiffer material. That might help you sprint faster but it also makes for a less comfortable ride. With Compact Road, Giant engineers are able to design frames with just the right amount of vertical compliance. You get a smoother, more comfortable ride.

Better Fit:

Because of the sloping toptube and lower standover height, it’s easier for riders of all sizes to get the perfect fit. With greater adjustability and up to six sizes per series, even Giant’s most demanding pro athletes, women and men of all different heights, always have a perfect fit with stock-size frames.

Compact Road Sizing:

Sizing (click to enlarge):


This product was added to our catalog on February 17, 2016.