2025 Yeti SB165 C3 GX AXS Transmission 29"/27.5"

Discover the next-generation of translating-pivot suspension designs. Setting new expectations for kinematics, longevity, sensitivity, and strength

• Pivot Translation. Switch Infinity utilizes a patented translating pivot that switches direction as the bike moves through its travel. This provides a tailored anti-squat curve while delivering a fine-tuned leverage ratio.
  
  
• Tunable. Switch Infinity is a versatile four-bar system that easily adapts to different travel platforms. The system can achieve a myriad of kinematics depending on the desired ride characteristics. The Switch Infinity system can control ride characteristics more precisely than other suspension designs because of the linear path of the main pivot.­
  
  
• Absorbs Bumps Effectively. Switch Infinity decouples chain forces from suspension forces incredibly effectively. In the beginning and mid-section of travel – when Switch Infinity moves up – a relatively flat and high anti-squat curve ­creates an efficient pedaling platform through the entire pedaling zone. As a result, suspension performs consistently and predictably. When Switch Infinity reverses direction, anti-squat drastically drops for freedom of suspension movement. 
  
  
• Bottomless. By Design. Due to Switch Infinity’s unique characteristics, bottom out resistance increases in the last third of the stroke, delivering a feel that makes reaching full travel almost imperceptible to the rider. Rear shock damping is tuned to work in harmony with the engineered kinematics of each bike.
  
  
• A Better bearing approach. With a reengineered approach to the bearing interface, we’ve increased the sensitivity and extended bearing life. Main pivot bearing races are linked radially and axially. A Floating Collet Axle tightens directly against the Switch Infinity bearings eliminating the possibility for unwanted play, or misalignment. The result? Switch Infinity gives riders greater suspension sensitivity and a stiffer chassis with longer bearing life than ever before.
  
  
• More Durable. By Design. A newly refined, simple design built from proven suspension components enabled by FOX Factory. The new design utilizes more sophisticated bushings and hardware to shield from the elements.
  
  
  • New Bushing Assembly: The all-new bushing coating is longer wearing while having the lowest co-efficient of friction with a more durable backing.
    
    
  • Corrosion Resistant Bearings: Our new black oxide coated bearings dramatically improve corrosion resistance for prolonged longevity.
    
    
  • Grime Protection: Machined aluminum bearing covers provide precise contact with the main pivot bearings while keeping them grime free
    
    
  • Easy Maintenance: Grease ports keeps the new bushings friction free with ease and main pivot bearings are easily replaceable.
    
    

Custom Coil Kinematics.
Progressive suspension kinematics tuned specifically for a coil shock give incredible small bump sensitivity and proper bottom out support. Team input and race intelligence leveraged for a shock tune that maximizes Switch Infinity and remains active, lively, and ready for the inevitable “oh shit” hits.

Hello New School.
A refined main frame and swingarm silhouette that does more than just look sweet. It packages Switch Infinity and its linkage in a tighter, more efficient space, for added impact and ground clearance, along with increased holistic chassis stiffness.

Consistency No Matter the Size.
To give each size of the SB165 the same torsional stiffness, each frame has its own carbon layup. This is extra important for the SB165, due to the kind of aggressive riding it will encounter. We simply can’t afford to let flex affect suspension components with binding, premature wear, or small bump sensitivity reduction. And it’s vital to give every rider the same frame feel, regardless of frame size.

Speed Metal.
What good are proprietary bearings (AKA “impossible to find”) when it comes time to replace? Our designs use standard-sized bearings secured with precision-machined floating collet axles. Replacement is also made easier with all bearings pressed into the linkage assembly itself instead of the swingarm or front triangle.

Leverage Rate. 22% Progressivity.
Still the most progressive rate in our lineup, with a refined curve for mid-stroke composure when slashing turns, loading the bike for more versatility on more terrain.

Cable Management.
Internally routed cable tubes with secure closures at entry and exit points eliminate rattles and rub. Whether running a mechanical drivetrain and dropper or a wireless setup, cable management is intuitive, easy, and quiet.

Compact Switch Case.
We minimized the frame structure surrounding Switch Infinity to boost frame stiffness, reduce weight, increase ground clearance, and leave more room for hydration

Threaded BB.
Threaded aluminum bottom bracket shell with integrated ISCG-05 tabs. This critical drivetrain interface is now more durable, cleaner, and easier to service.

Patented Wishbone.
Patented, two-piece shock wishbone optimizes leverage rate while moving the shock forward in the frame. This positioning allows for a greater range of shock compatibility, decreases stand-over height, reduces shock tab sizes, increases water bottle compatibility, and boosts downtube clearance. Also makes shock removal quick and easy.

Additional Features

• 2.6 Tire clearance with room to spare
• 25mm more downtube clearance
• Low slung top tube for extreme maneuverability
• Floating collet pivot axles enhance frame stiffness and bearing life

GEOMETRY