Yeti SB-66 breaks cover

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Yeti SB66
Yeti’s 150mm SB66 uses a novel approach to suspension design
Yeti SB66
Switch Technology uses an eccentric main pivot that controls the rear wheel path

Well this snuck up on us; Yeti Cycles have just launched the new SB-66 today, a new 150mm trail bike that introduces a completely new suspension design, Switch Technology.

The new bike introduces a new suspension platform to get your head around. On first inspection it looks like a single pivot with a linkage driven shock, but peer a little closer and you’ll notice that the main pivot actually resides within an eccentric shell, situated just above the bottom bracket shell.

It’s called Switch Technology, and Yeti describe it thus “Switch Technology is a dual-link design that uses an eccentric link that switches direction as it moves through its travel.”

It’s been two years in development, and the design of the suspension allows a compact linkage arrangement with a stiff rear triangle, and is completely sealed to the elements with four bearings. A single forged piece houses the upper pivot and eccentric assembly, along with oversized linkage pins ensure maximum stiffness in this area.

By developing this design Yeti have been able to tune the suspension precisely and control the path of the rear axle. Early in the shock stroke the eccentric link rotates anti-clockwise, moving the main pivot backwards and creating rearward wheel path creating an anti-squat feel. Then, 100mm into the suspension the link begins rotating in a clockwise direction, the ‘inflection point’ and the suspension can then work independently of chain forces.

Around the new suspension platform is a custom butted hydroformed 6000 series aluminium frame with details including a tapered head tube and Yet’s Chip System rear axle design that allows a choice of rear hubs. Cables are routed internally for clean lines, there’s guides for a dropper seatpost, direct mount front derailleur tabs, elastomer chain slap guides and clever removeable ISCG chain guide tabs.

Weight for the aluminium frame is reported to be around 7lbs (3.17kg), and there’s a carbon fibre frame in the works, which will likely lop another pound off that figure.

I think it looks great in the typical Yeti style, and like the sound of the novel suspension design.

What do you think?

www.yeticycles.com

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