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Suspension cluster · Systems

Switch Infinity (Yeti): the pivot that goes up and down

Quick answer

Yeti's Switch Infinity swaps the lower link for a pivot that slides vertically on two guides (Kashima, by Fox) and reverses direction mid-travel. That gives high anti-squat at sag (firm pedalling) that drops as it sinks (loose and low kickback). Exclusive to Yeti; it demands strict maintenance of the guides. It is one of the systems.

Almost every system rotates links. Yeti did something odd: slide a pivot in a straight line. And it works.

Switch Infinity: a lower pivot that slides vertically on a rail and reverses direction mid-travel
The pivot doesn't rotate: it goes up and then down on a rail. That's the only thing like it.

What it achieves

By raising the pivot in the first third and lowering it afterwards, Yeti gets what every designer is after: high anti-squat where you pedal, low where you hit. The transition is very smooth because the movement is continuous, not a link jump. That's why the SB bikes feel efficient climbing and very loose deep in the travel.

Pros and cons

For
Very smooth anti-squat transition; efficient pedalling + deep absorption.
Against
Exposed sliding mechanism: sensitive to mud, strict maintenance of the guides.
Used by
Yeti only (SB line). Own patent, developed with Fox.
It is not "a single pivot with a trick": the moving pivot creates a complex virtual pivot, closer to a dual-link than to a single pivot. The only truly distinct thing is that the pivot translates rather than rotates.

Frequently asked questions

Is it a single pivot?

No: the sliding pivot creates a virtual pivot, dual-link style. What's distinctive is that it translates vertically.

Lots of maintenance?

Yes: the exposed guides need periodic cleaning and lubrication to keep their feel.

Got a Yeti SB?

Tell us the model and we'll tell you its curve and the service the Switch Infinity needs. Message us on WhatsApp

Related

How suspension works → Anti-squat → DW vs VPP vs Maestro → Six-bar / DW6 →

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