Giant XTC Advanced 27.5 1 Comp/Red (Matte/Gloss)
Take your XC abilities up a notch. Hammer up climbs, rail through corners, feel total control on every descent.
At the core of this World Cup proven XC bike is a featherweight composite frameset designed to handle the specific geometry demands of 27.5-inch wheels. An elite mix of weight, comfort and performance handling are built into each frame, offering the advanced off-roader the opportunity to pilot a bona-fide 27.5 hardtail.
>Smooth handling, 27.5-inch wheel, optimized geometry for stable XC riding characteristics
>Integrated seatpost clamp mechanism
>Integrated rear disc tab
Färg Comp/Red (Matte/Gloss), Metallic Blue
Ram Advanced-Grade Composite
Gaffel eller ev. stötdämpare fram Fox Float Factory CTD Remote, 100mm travel, 15mm Thru-Axle
Stötdämpare bak N/A
Handtag Giant Contact XC, 19mm rise, 690x31.8mm
Styrstam Giant Contact, ±8-degree rise
Sadelstolpe Giant Contact Composite, 27.2x400mm
Sadel Fi'zi:k Tundra M5, MG rails
Växelhandtag Shimano XT
Växelförare fram Shimano XT
Växelförare bak Shimano XT, Shadow+
Bromsar Shimano XT, M785
Bromshandtag Shimano XT, M785
Kassett eller ev. drev bak Shimano HG81 11-36, 10-Speed
Kedja KMC X10 w/ Missing Link
Vevparti Shimano XT, 26/38
Vevlager Shimano PF BB
Fälgbana Giant P-XCR 1 Composite 27.5 WheelSystem
Nav Giant P-XCR 1 Composite 27.5 WheelSystem [F] 15mm Thru-Axle [R] 142x12 Thru-Axle
Ekrar Giant P-XCR 1 Composite 27.5 WheelSystem
Däck Schwalbe Racing Ralph 27.5x2.1", EVO 127 EPI
Vikt 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.
Frame size XS (37) S (39) M (44) L (49) XL (52)
Head tube angle (°) 69.5 69.5 69.5 69.5 69.5
Seat tube angle (°) 73.5 73.5 73.0 73.0 73.0
Top tube length (cm) 55.5 57.5 59.5 61.5 64.0
Reach (cm) N/A N/A N/A N/A N/A
Head tube length (cm) 9.5 9.5 10.0 11.0 12.0
Stack (cm) N/A N/A N/A N/A N/A
Chain stay length (cm) 43.0 43.0 43.0 43.0 43.0
Wheelbase (cm) 105.3 107.3 108.8 110.9 113.4
Standover height (cm) 77.6 77.9 79.4 81.7 83.2
Unrivaled Composite technology
With more than 25 years of experience in carbon fiber engineering, plus a long history of rigorous development and testing with professional athletes, Giant is the industry leader in composite bicycle technology. To meet the needs of high-performance riders, Giant offers two grades: Advanced SL and Advanced Composite. Both feature unique materials, resin formulas and construction techniques.
Giant Advanced Composite technology
Giant's High Performance-grade raw carbon fiber is used to produce custom composite material in our own composite factory. Extremely lightweight, stiff and compliant, these handcrafted frames feature the following materials and processes:
>High Performance-grade raw carbon material features an excellent stiffness-to-weight ratio.
>High Performance formula provides excellent void minimization (bubbles) while maintaining outstanding strength. And vibration absorbing particles are added to help disperse road shock.
>The front triangle (downtube, headtube, toptube, seattube) is assembled and molded as one continuous piece. The Modified Monocoque Construction. This front half is then joined to the rear chainstays and seatstays in a secondary process. This process eliminates the outermost woven composite sheet to reduce weight without affecting ride quality, strength or stiffness.
Giant 27.5 wheel technology
Superior performance without compromise. These are the reasons to ride Giant 27.5:
Significantly lower bike and rotational wheel weight helps you climb faster with less effort.
Overall bike weight
Compare the weights of identically equipped bikes with different wheel sizes and you'll see substantial weight differences. As expected, the 26-inch-wheel bike is somewhat lighter than the 27.5, and substantially lighter than the 29 (up to two pounds of overall bike weight savings from 29 to 27.5). Every gram saved helps you ride faster.
The overall weight of a 27.5 wheel set (wheel, tire and inner tube) is only 5% greater than that of an identically built 26-inch wheel set. Compare this to the 12% increase of a 29-inch wheel set and you can see how a seemingly small increase in diameter results in substantial weight gain—and poorer performance when climbing or accelerating.
Lighter wheels/tires result in a quicker acceleration and lighter overall bike weight - a win-win combination.
Snappier acceleration and a reduced angle of attack for a smoother, more agile ride.
Increased wheel diameter decreases the angle of attack (the angle in which a round object intersects a square object). This is a good thing. A 29-inch wheel rolls over a 6-centimeter square-edge obstacle 14% more efficiently than a 26-inch wheel does. In comparison, a 27.5-inch wheel rolls over the same obstacle 9.8% more efficiently than a 26-inch wheel does. Another way to analyze angle of attack is the degree of impact—where 26-inch equals X degree, 27.5 equals X-4 degrees and 29 equals X-6 degrees. Again, a shallower angle is better—so 29-inch takes the win, with 27.5 exhibiting nearly the same performance but without the weight penalty.
Arguably the most important benefit of 27.5 over 29 is quicker acceleration. This is the "snap" that a rider feels when they push hard on the pedals. It is affected not just by overall static weight but also where the weight is distributed throughout the wheel. The farther the weight is from the center of the hub, the slower the acceleration. So a similarly constructed 1000-gram 29-inch wheel is slower to accelerate than a 1000-gram 26-inch wheel—because the larger diameter rim and longer spokes place weight farther from the hub. The key to snappy acceleration is minimizing the weight of the outermost components (rim, nipples, spokes, tire, tube). As you can see, a 27.5-inch wheel is only 1.5% slower to accelerate than a similarly constructed 26-inch wheel, but a 29-inch wheel is 3.6% slower than a similarly constructed 26-inch wheel.
A larger tire contact patch, increased stiffness, and optimized frame geometry improve traction, braking and handling.
The larger the diameter of a wheel, the greater the contact patch of the tire. A larger contact patch results in better traction, which leads to improved acceleration, deceleration and cornering. As you can see, a 27.5-inch wheel has a similar contact patch to the 29.
Lateral (side-to-side) frame stiffness can be affected by wheel size. To accommodate larger wheels, frame dimensions must be elongated. Therefore, a size medium 29-inch wheel frame has more lateral flex (bottom bracket and headtube) than a size medium 27.5 or 26-inch wheel frameset. Additional flex compromises handling under heavy pedaling or sharp cornering.
The larger the wheel, the more difficult it is to optimize geometry, especially on smaller frames. As the frame size decreases, headtube heights become higher (in relation to saddle height). On 26 or 27.5-inch frames, it's less of a problem, but geometry limitations can affect smaller 29-inch-wheel frames.