The path to the podium is long, dirty, and rocky; luckily, Giant's XTC Advanced SL 27.5 1 is designed exactly for those conditions. An OverDrive steerer flows into the MegaDrive down tube, which in turn attaches to a massive bottom bracket to deliver laser-sharp handling and explosive acceleration. Add to that the speed and control of 27.5-inch P-XCR1 composite wheels, and you can see why your competition sees the XTC as an unfair advantage. Continuing with more top end, the XTC is equipped with a 100mm RockShox SID RL fork and a SRAM X01 1x11 drivetrain with Avid Guide RS brakes for for the ultimate in riding performance. More of the go-fast bits are represented with a carbon bar and seatpost. With Giant's XTC Advanced SL 27.5 1, the path is clear.
27.5-inch wheels (also known as 650B) offer the best characteristics of 26- and 29-inch wheels for an outstanding ride.
Efficiency: Increasing the wheel diameter decreases the angle of attack (the angle at which round objects meet square objects). The lower the angle, the easier it is to roll over obstacles and maintain momentum.
Traction: With a larger diameter, the tire's contact patch increases, putting more rubber on the trail. A 27.5-inch (650B) has nearly the same contact patch as a 29er for superb acceleration, braking and cornering.
Weight: The weight of a 27.5 wheel, tire and tube is only 5% more than an identically built 26-inch wheel. Compare this to a 12% increase with a 29-inch wheel. Lighter wheels mean a lighter bike, and better climbing and acceleration.
Pedals sold separately
|Frame||Giant Advanced SL-grade Composite|
|Fork||RockShox SID RL, OverDrive steerer, PushLoc lockout, 100mm-travel|
|Rims/Wheels||Giant P-XCR1 Composite 27.5-inch|
|Tires||Schwalbe Racing Ralph Evo, 27.5 x 2.1|
|Bottom Bracket||SRAM press fit|
|Rear Derailleur||SRAM X01 Type 2|
|Rear Cogs||SRAM XG-1195, 11-speed: 10-42|
|Handlebars||Giant Contact SLR, composite, flat|
|Stem||Giant Contact SL|
|Brake Levers||Avid Guide RS|
|Brakes||Avid Guide RS hydraulic disc, 6/5-inch rotors|
|Saddle||Fizik Tundra M5|
|Seatpost||Giant Contact SLR, composite|
27.5 on the trails