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Item # YTI0134 45% Off

5 5

Community Rating | 2 Reviews

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  • Black/Turquoise, S ($1,099.99)
  • Black/Turquoise, M ($1,099.99)
  • Black/Turquoise, XL ($1,099.99)
  • Black, XL ($1,099.99)
  • Turquoise, XL ($1,099.99)
  • Yellow, S ($1,099.99)
  • Yellow, M ($1,099.99)
  • Yellow, L ($1,099.99)
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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.

Tech Specs

Frame Material:
6061-T6 aluminum
Pivot Type:
Switch Technology
Rear Travel:
152 mm
Rear Shock:
FOX FLOAT CTD Adjust Kashima
Recommended Fork Travel:
140 - 160 mm
Rear Axle:
10x135 mm quick-release
Head Tube Diameter:
1.125 x 1.5 in
Headset Included:
no, zero stack tapered
Front Derailleur Mount:
Derailleur Pull:
Bottom Bracket Type:
73 mm
ISCG Tabs:
Seatpost Diameter:
30.9 mm
Cable Routing:
Accessory Cable Stops:
seat dropper
Replaceable Rear Derailleur Hanger:
Compatible Components:
Shimano, SRAM
Claimed Weight:
7.5 lbs
Recommended Use:
all-mountain and trail riding
Manufacturer Warranty:
2 years

Geometry chart

Yeti Cycles

Geometry Chart


FOX 34 150mm Travel Fork

Seat Tube


Effective Top Tube


Stand Over

Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Height




S 16.5in 23.2in 27.9in 4.9in 66.7o 71.7o 13.5in 17.0in 44.2in
M 18.0in 24.2in 28.3in 4.9in 66.7o 71.7o 13.5in 17.0in 45.2in
L 19.5in 25.2in 29.4in 5.5in 66.7o 71.7o 13.5in 17.0in 46.3in
XL 21.0in 25.9in 30.2in 6.3in 66.7o 71.7o 13.5in 17.0in 47.1in

Yeti Cycles SB-66 Geometry Chart

Reviews & Community

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Yeti Cycles SB-66 Mountain Bike Frame - 2013

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Here's what others have to say...

i wanted to replace my 2008 frame to this...

Posted on

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...

Posted on

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...

Posted on

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...

Posted on

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...

Posted on

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...

Posted on

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

Do the Small Yellow Sb66 frames currently...

Posted on

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?

Posted on

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...

Posted on

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

Can it ship to singapore?

Posted on

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...

Posted on

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...

Posted on

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?

Posted on

What year model is this frame?

Best Answer Responded on

Model year is 2013.

hi! Can you sent this frame to spain?...

Posted on

hi! Can you sent this frame to spain? Thanks

Responded on

Per our vendor agreements, we are only able to ship Yeti products to addresses outside of North America.

Yeti SB66 Review Preview 2012 Interbike

Posted on

By Bike Insiders

5 5

Super Bike For Good Reason

  • Familiarity: I've put it through the wringer

The Yeti SB66 is a Porsche of bikes and for good reason. I have ridden mine for the last two years and the only bike that has come close to the playful nature of this bike is the HDR. What makes this bike so great is the Switch technology which resides above the bottom bracket. These eccentric circles keep you high in the travel on the climbs making the 160mm of travel feel far less and turns this bike into a pretty efficient climber. On the descents, the Switch Technology sinks you a little further into the travel which makes you feel like you are sitting in the bike and allows for greater control. This bike only gets more stable at speed and begs to be ridden hard and fast. I am 5'11'' and the medium frame fits me perfectly. Yeti's run large so be warned. If you have any questions please give me a call, I would love to talk to you about this bike.

Here is my contact information: My direct line 801.736.6396 ex. 4389. Feel free call to me anytime, I?m always happy to talk about bikes or gear or the weather. Whatever works! I?m here Mon, Tues and Friday 1:30-10pm MST and Saturday 9-5:30 as well as Sunday 10-7. I look forward to speaking with you.

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