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Yeti Cycles
SB6 Carbon XX1 Pro Complete Mountain Bike-2015

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Champion from the cradle.

Yeti's SB6 Carbon XX1 Pro Complete Mountain Bike makes no pretenses about its pedigree, its intentions, or its relative record at fulfilling those intentions. By leading with the Super Bike (SB) and Pro designations, Yeti set the bar pretty high; by winning the Enduro World Series twice in a row before it even went into production, it exceeded that bar. Yeti was so dedicated to making this the best bike in the world that it didn't even start selling it until it already was the best bike in the world.

This unprecedented success comes courtesy of the SB6 Carbon Pro's blending of two of Yeti's suspension philosophies in order to create a platform that climbs well, courtesy of its Switch Link heritage, without sacrificing the ability to take big hits, which it owes to its 303 pedigree. The result is the Switch Infinity. And two Enduro titles.

The original Switch Link has been written to death in publications across the industry, so we'll keep this brief by touching on the differences between Link and Infinity. When you get past the 30% stroke while really pushing the Link's limits, the eccentric creates a momentary harshness under rapidly successive big hits. The Infinity replaces the Link's sinuous travel arc with a linear plane of motion, so it changes direction without getting caught in the minute dead spot that produces that harshness. Of course, 95% of all riders won't ever push the Switch Link hard enough to experience this dead spot, but Yeti (being Yeti) went ahead and fixed it, anyway.

Don't let the suspension's apparently complicated construction fool you into thinking this is a temperamental piece of nightmarish maintenance. FOX has successfully tested production units to well over a million compression cycles while completely submerged in mud, a durability that's further proven by the three-year old test units that are still in use today and the above-mentioned Enduro success. For those of us who are our own mechanics, maintenance is simplified by the inclusion of easily-accessible grease ports, which do away with the need for time-consuming rebuilds.

Other than those two key changes, the suspension systems are similar. Like the Switch Link, the Switch Infinity slider travels upward under the first phase of compression, when the SB6 is settling into its sag point. As the rear end compresses deeper, the direction changes, and the slider travels down toward the bottom bracket shell to maintain a steady pedaling platform. Deep in the stroke, it works in conjunction with the upper pivot to produce a vertical wheel path that effortlessly flattens big, square-edged impacts. All SB6 Carbon frames include the FOX Float X CTD rear shock.

The SB6 isn't the only super bike in Yeti's stable. Though the SB6's rear shock is an upgrade, it shares the overall design of the Switch Infinity suspension system with its little brother, the SB5, and components are all fungible in the end, so Yeti dumped a whole lot more into the SB6 frame's construction in order to set it apart from, well, anything on the market today, SB5 included.

Yeti took the near-perfect SB5 frame and brought it a few steps closer to superlative. The overall stiffness is up for optimal power transfer on climbs and accelerations. The head tube angle is dropped to a slack 65.5 degrees — down a full degree-and-a-half from the SB5. That, combined with the long top tube, makes for a long, low ride that can handle steep, lumpy terrain with ease and speed. And it should, because the SB6's geometry was developed in collusion with Yeti's resident expert, the incomparable Jared Graves.

Another side effect of calling its machine a Super Bike is that the team at Yeti can't spec the SB6 with subpar kit and still expect it to be taken seriously. The aim for the SB6 Pro is, appropriately, pro-level dominance. That's where the XX1 drivetrain comes in to play, which takes advantage of the brute force of SRAM's 1x setup with the precise shifting of mountain biking's flagship rear shifting. The wheelset is also what you'd expect to be filed under Super Bike Pro, with Yeti opting for ENVE's M70 Thirty rims tied to DT 240 hubs. The fork is a FOX Float 36 160 Factory, designed for reckless speed with fat stanchions and huge travel, and the WTB Devo Custom Saddle rides atop a Thomson Covert Dropper seatpost, which we love because it cleans up cable routing. A Chris King headset links to Easton's stubby Havoc 35 stem and super-wide Havoc 35 Carbon bars, and the ENVE wheelset comes wrapped in Maxxis tires.

The 2015 Yeti SB6 Carbon XX1 Pro Complete Mountain Bike is available in five sizes ranging from X-Small to X-Large in the colors Black, Green, and Turquoise.

Frame Material
carbon fiber
Switch Infinity
Rear Shock
FOX Float X CTD Kashima w/ Trail Adjust
Rear Travel
152 mm, 6 in
FOX Float 36 160 Factory Kashima
Front Travel
160 mm
Chris King
SRAM XX1 11-speed
Front Derailleur
Rear Derailleur
SRAM XX1 11-speed
32 t SRAM XX1 11-speed
Bottom Bracket
SRAM XX1 11-speed
SRAM 11-speed
180 mm Shimano Ice
Easton Havoc 35 Carbon
Handlebar Rise
20 mm
Handlebar Width
800 mm
Yeti lock-on
Easton Havoc 35
Stem Length
50 mm
WTB Devo Race Custom
M, L, XL Thomson Covert Dropper, XS, S RockShox Reverb
ENVE M70 Thirty
DT Swiss 240
Maxxis High Roller 2
Tire Size
2.3 in
not included
Claimed Weight
frame 5.9 lbs
Recommended Use
Manufacturer Warranty
5 years limited on frame

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