Switching it up.

The alloy SB-66 marked a change in direction for the boys in Golden, CO, as it was the first platform to receive Yeti's innovative approach to suspension design -- Switch Technology. Developed to both climb and descend aggressive backcountry trails, the 152mm travel SB-66 Mountain Bike Frame represents the current direction of progressive mountain biking.

Key to the SB-66's multifaceted ability is its distinctive Switch Technology, rear suspension design. Technically, it's a mini dual-link system. And while there're a number of iterations currently on the market, Yeti's application offers something a bit different. Switch Technology refers to the rotational movement of an eccentric housed in the lower pivot.

Essentially it's a pivot within a pivot, with 12mm separating the centers. As the rear suspension compresses into its travel, the eccentric (and the pivot) rotate counter-clockwise as viewed from the drive-side of the bike. It moves this way through the first 100mm or so of travel to provide an anti-squat, neutral characteristic to the suspension.

When riding, it feels as if the SB-66 has a built-in pedaling platform, and since it's a result of the eccentric, it doesn't rely on heavy compression damping. This gives the SB excellent traction and control on choppy trails. At the same time, the SB-66 is ready for larger hits. Once the mid-stroke is exceeded, Switch Technology changes direction and rotates clockwise. This keeps chainstay growth at a minimum for a reduced pedal kickback and lively handling on tight and twisty trails. It also ramps up the leverage ratio. For the most part, Switch Technology produces a flat curve, but once the rear suspension is pushed towards the limit, it firms up to provide a bottomless feel.

There's another benefit as well. Since the bottom bracket, eccentric, and lower pivot for the swing link are all machined into a single, forged aluminum structure, they're in perfect alignment on every bike. This translates into a rear swingarm that moves freely throughout its travel range, and to a longer life for the Enduro Max sealed cartridge pivot bearings.

Each of the SB-66's 6061-T6 frame tubes are shaped for a purpose. Take the seatstays for example -- they flare in the vertical plane towards the dropouts. On the left side, this helps distribute loads from the post mount. Otherwise, the larger cross-section handles compression loads without flexing. The down tube is ovalized at the bottom bracket to enhance stiffness, and it bears flattened sides to channel and distribute stress from the shock mount.

Attached to that shock mount is a FOX FLOAT CTD shock with the Kashima coating. Since Yeti partners with FOX for its World Cup team, it's no surprise that they spec the latest from FOX. The Kashima Coat creates a slicker, more durable finish on the shock shaft, allowing the suspension to respond to bump input with greater sensitivity. The dampening system has been revised with a simplified user experience as the main objective. CTD offers three pre-tuned compression dampening options for Climbing, Trail, and Descending.

The Yeti SB-66 has a 73mm bottom bracket with splines that accept removable ISCG 03/05 chainguide mounts. The tapered head tube (44mm ID top and 56mm ID bottom) takes a zero-stack tapered headset. Out back, it comes equipped with chip-style dropouts that accept a standard quick-release. If you're interested in added swingarm stiffness, a 12x142mm chip kit is also available. The post-style caliper mount allows a direct fit for a 160mm rotor. It takes a direct mount top-pull front derailleur, and the top tube bears cable guides for a dropper seatpost.

The Yeti SB-66 Mountain Bike Frame is available in four sizes from Small to X-Large and in the colors Black, Lime, Turquoise, White, and Yellow.

Share your thoughts

What do you think of the

Yeti Cycles SB-66 Mountain Bike Frame - 2013

? Share a...

Write a review


No file chosen

Rather attach a photo from another website?

Rather attach a photo from your computer?

  • Product review:
  • Share a video
  • Share a photo

How familiar are you with the product?(Optional)

Only jpg, jpeg, png, gif or bmp files please.


Here's what others have to say...

Unanswered Question

Does the sb66 ship with chainguide tabs?

I just bought a SB66 aluminium version and my question is if I can install a RD XTR M986 or I can only use the previous model (M985)because of the hanger....
I'm trying to buy something now and I do not want to screw things up :)
PS: I bought a Shimano chip kit as well for 12x142mm, I do not know it that matters or not here....
Many thanks


Responded on

HI Walter,

The new Shimano Direct-mount derailleurs like the RD-M986 should include a link that makes them backwards-compatible with traditional-mount frames like the SB-66.

what are the shipping dimensions and weight of this frame?

Responded on


This frame ships in a box measuring 42x8x23 inches. A medium frame in the box weighs about 17 pounds.

Give us a call or chat if you have other questions about the SB-66, or to place an order!

WILL MY Fox Racing Shox 32 Float 140 RL , 1.5t, 9mm QR FRONT FORK WORK WITH THIS FRAME???

MORE INFO ON FORK: Check out Fox Racing Shox 32 Float 140 RL Black W/ Grey Logo, 1.5t, 9mm QR attributes :
Travel: 140 mm
Stanchion Material: aluminum
Lower Material: magnesium
Crown Material: aluminum
Wheel Size: 26 in
Steer Tube Diameter: tapered 1.5 - 1.125 in
Stanchion Diameter: 32 mm
Axle To Crown:
Spring Type: air
Damper: rebound
Adjustability: preload
Lockout: yes
Max Rotor Size: 203 mm
Brake Compatibility: post mount
Rotor Compatibility:
Compatible Components:
Weight: 1733 g

Responded on

It is on the lighter end of what will work with this frame, but your fork is within the range of what the SB-66 was dexsigned to work with. Build it up and go have fun!

what options do I have if I want to put a DT swiss or Mavic rear axle 12x142?
From what I read here the chip kit only works with shimano axle....which sounds kinda stupid, but anyway....

Thank you

Responded on

The 2013 SB66 would need the Yeti Chip kit, YTI0108, to run a 12x142 axle. It does require the use of Shimano's 12x142 axle.

Responded on

The Shimano axle will work with DT and Mavic wheels. The Shimano nut just sits outside the frame, whereas DT 12mm axles are paired with frames that have the threading molded into it.

Responded on

Thanks man, real help! I have everything now!

i wanted to replace my 2008 frame to this Yeti SB 66 but in the recommended fork travel, it says 140mm-160mm. I currently have 100mm travel fork and it has straight tube 1 1/8. Can i still use my current fork if i buy this? Thanks.

Best Answer Responded on

You'll want to get a new fork , you don't want to ride a frame designed for 140mm-160mm travel with a 100mm fork.

do yeti bike frames come from the factory...

do yeti bike frames come from the factory with the headtube pre faced?

Best Answer Responded on

The head tube is faced before leaving Yeti's factory, our shop also quality control checks every frame/bike before shipping.

5 5

Great bike for me

  • Familiarity: I've put it through the wringer

This is my first full-suspension bike and I love it. I wanted a bike that would be efficient enough for XC but I still wanted enough travel to be able to handle some DH. This will be my third season on it and I still have never really come across any terrain where I felt the SB was lacking. I am 5'9" with like a 31" inseam and the M fits me perfect.

Jos? Elias tienen blanco M, ?
Hacen env?o...

Jos� Elias tienen blanco M, ?
Hacen env�o a Rep�blica Dominicana?

Responded on

Pido disculpas, sin embargo Podemos enviar solamente Yeti para EE.UU., Canada y Mexico.
Si usted tiene un amigo o un pariente que vive en los EE.UU., podemos enviar a ellos.

Do you have black in xs size? Do you ship...

Do you have black in xs size? Do you ship to indonesia?

Best Answer Responded on

We cannot ship to Indonesia, unfortunately, however we would be happy to ship the bike anywhere in the US for you. Feel free to contact us at 801-736-6396 or via live chat to discuss further.
Thank you!

What headset is needed for this bike? If...

What headset is needed for this bike? If I order the frame and the headset at the same time, can Backcountry install it prior to shipment? And how much will it cost?


Responded on

Tapered Headset 44/56. I ordered this frame w/ a headset from Backcountry, installation was no charge.

Is the rear axle really 10x135 or is it...

Is the rear axle really 10x135 or is it 12x142?

Do the Small Yellow Sb66 frames currently...

Do the Small Yellow Sb66 frames currently in your stock have the yellow/turquoise color combo, or the yellow/black color combo?

Best Answer Responded on

The Yellow frame variant is the photoed Yellow and Turq color combo. The Yellowish/Black variant is the "Lime" color scheme, and is only left in sz XL

I stand 5'7" what size is appropriate?

I stand 5'7" what size is appropriate?

Responded on

Most likely you'd be a small unless you have unusually body proportions such as arm or leg length. Your best bet is to check our fit calculator at the bottom of the page and imput all your measurements.

Is this a 26" or a 27.5" tire size...

Is this a 26" or a 27.5" tire size frame?

Can it ship to singapore?

Can it ship to singapore?

Best Answer Responded on

Hi Elvis,

Unfortunately we are unable to ship Yeti products outside of the United States.

hello, this frame has the chain guide, is...

hello, this frame has the chain guide, is the SB66 or SB66 comp?

Best Answer Responded on

This is the SB66 frame. The Comp frame is the same frame, but with the non Kashima coated EVO rear shock. Neither frame includes a chain guard. Yeti uses a separate removable ISCG mount that slides onto the BB shell, item YTI0130.

Responded on

Im pretty sure its the comp. The SB66 has a carbon rear triangle and the comp is all aluminum. The Comp also weighs in at 7.75 where as the sb66 comes in at 6.8 pounds.

Is it possible to get the frame with no...

Is it possible to get the frame with no shock?

Responded on

Unfortunately it is not, this frame comes direct to us from Yeti with shock.

Please let us know if you have any other questions.

What year model is this frame?

What year model is this frame?