Giant Defy 1 Disc (2016) (Blue/Black/White)
Whether you ride Gran Fondos, double centuries, or just like to rip your legs off on a Sunday ride, the Giant Defy will beg you to keep on going. Built on a frame made with lightweight ALUXX SL aluminum and proven Defy endurance geometry, the Defy Disc is a versatile choice for everyday road rides or long weekend adventures. Now featuring disc-brake technology for added control, plus the D-Fuse seatpost to smooth out the ride, it’s a well-mannered machine even on less-than-perfect roads. And its combination of the OverDrive tapered steerer tube and PowerCore bottom bracket ensures precise handling and maximum pedaling efficiency, helping you stay at the head of the pack.
- ALUXX SL-grade aluminum frame with compliant D-Fuse composite seatpost
- Composite fork with alloy OverDrive steerer
- Giant PR-2 Disc rims, Giant Performance Tracker Disc hubs, Sapim Race spokes
- Shimano 105 11-speed shifting
- TRP Spyre mechanical disc brakes
Sizes: XS, S, M, M/L, L, XL
Frame: ALUXX SL-grade aluminum
Fork: Composite, with alloy OverDrive steerer
Handlebar: Giant Connect, 31.8mm
Stem: Giant Sport
Seatpost: Giant D-Fuse, Composite
Saddle: Giant Performance Road
Shifters: Shimano 105
Front Derailleur: Shimano 105
Rear Derailleur: Shimano 105
Brakes: TRP Spyre-C, Mechanical disc, 160mm
Brake Levers: Shimano 105
Cassette: Shimano 105 11x32, 11-speed
Chain: KMC X11L
Crankset: Shimano RS500, 34/50
Bottom Bracket: Shimano, Press Fit
Rims: Giant PR-2 Disc
Hubs: Giant Performance Tracker Road Disc, Sealed bearing, 28h
Spokes: Sapim Race, 14/15g
Tires: Giant P-SL 1, 700x25, Front and rear specific, Folding
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 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.
Benefit: 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.
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.
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:
Extremely lightweight framesets featuring high-performance strength-to-weight ratios
- Predominantly features 6011 alloy for a high-performance strength-to-weight ratio
- Double butting results in lighter weight without sacrificing strength
- Features PressForming, WarmForming (advanced manipulation of tubeset shaping via an injection of high-pressure air) and FluidForming in select models
- Features both Standard (double-pass weld technique without finish sanding/filing) and Smooth welding techniques for outstanding strength and weight
- The proprietary “D” shaped composite seatpost dampens vibration—resulting in a smooth, compliant ride.
Sizing (click to enlarge):
This product was added to our catalog on February 17, 2016.