This re-design started a few years back when Yeti employees started pushing for custom features - ISCG tabs so they could run chain guides tapered head tubes, custom cable routing. Once the dust settled, we decided to take the best of all those bikes, add a few new tricks and launch the new 575.
So what's different? Let's start up front. The front triangle still sports the sexy custom hydro-formed tubeset that has given it its distinctive look, but we have added a tapered head tube to increase front-end stiffness, added ISCG mounts and completely redesigned the main pivot and main pivot junction. The main pivot now has double row bearings for increased stiffness and durability. A new hydro-formed main pivot junction increases stiffness and fatigue strength, allows more clearance, and facilitates a direct mount front derailleur for better performance. We added cable stops for dropper seat posts as well.
The rear chainstays have been completely redesigned as well. Gone are the svelte chain stays - these have been replaced by oversized alloy chain stays with internal cable routing. Not only are they extremely durable, but they look good too. They feature our Yeti chip system, so you can run 12mm x 142mm thru axle or standard QR. The carbon seat stays remain intact. The geometry has also been revised for aggressive trail riding. We lowered the bottom bracket a bit and slackened out the head tube.
The 575 has long set the bar for all-mountain performance and now it has even more flexibility. You can still build it up light weight, but you can also build it to tackle ridiculous terrain. It keeps getting better.
Travel: 5.75" (146mm)
Weight: 7lbs (3.17kg)
Rear Shock: Fox RP2 (7.875" x 2.0")
Bottom Bracket: 73mm shell
Rear Wheel: 135mm spacing - QR/142mm spacing - 12mm Axle
Front Derailleur: Direct Mount (E-Type)
Seatpost: 30.9mm diameter
Frame Features:
Custom butted hydroformed 7005 alloy tube set
Tapered head tube (1-1/8" 1-1/2")
Re-designed chainstays with oversized alloy tubing
Internal cable routing
Carbon seatstays with FlexPivot technology
Double row bearings on swing-arm main pivot
Direct mount front derailleur eliminates clearance issues
Dropouts 12mm x 142mm thru axel or 135mm QR
ISCG 05 for easy installation of chain guide system
Cable stops for height adjustable seatpost.
The rear triangle of the 2011 575 is where the majority of the changes occurred. We wanted to stiffen up the entire rear section and make it more durable while adding minimal weight. Starting with the main pivot mount, there is a hydro-formed part that fits between the bottom bracket and seat tube, the swing arm connects to this junction with double row bearings. The double row bearings increase the longevity and durability of the pivot mount by 75%.
Those bearings are housed in a re-designed chain stay and yoke. The yoke and chain stays are borrowed from the AS-R 7 platform and provide a significant increase in torsional rigidity over the '10 575 rear triangle. To finish off the re-design we have internal cable routing for the rear derailleur on the drive side chain stay. This allows for clean routing and maximizes clearance between your tire, chain stay and crank system.
The dropouts on the '11 575 feature out Yeti chip system, so you can run 12mm x 142mm thru axle or standard 135mm QR. So, based on your wheel/hub combination you simply insert the appropriate chips and you are on your way.
The Yeti chip system is a very simple design - two 3mm bolts attach the chips to the frame and they can be switched out in a couple of minutes. The design also allows easy access to the replaceable rear derailleur hanger. These parts are sold through authorized Yeti dealers.
We worked with Shimano engineers to ensure the Yeti Chip system would work with Shimano's new 12 x 142 QR system. The system is similar to the Shimano QR found on Fox suspension forks, but has been optimized for use with a rear wheel. The oversized 12mm axle adds strength and stiffness to rear end and the QR makes it easy to remove your wheel. A small set screw allows you to fine tune the system so your QR lever will always remain in a constant position on the bike.
The "new" tapered headtube provides an increase in torsional and lateral stability over the '10 575 straight headtube, with a negligible weight penalty. The hydroformed toptube/downtube are perfectly matched to accept the wider shape of the tapered heatube and complete the increase in front-end stiffness.
The tapered headtube is perfectly matched for the Fox Racing 150mm/15mm QR fork. The revised geometry is based off the ride height of this 150mm travel platform. For the revised geo we lowered the bottom bracket slightly and slackened out the headtube, for an overall more aggressive trail riding stance.
Direct Mount Front Derailluer
The e-type direct mount front derailleur is attached to the main pivot. This allows for chainstay clearance and proper shifting throughout the suspension range. The front derailleur actually moves with the swingarm as it goes through the travel. Additionally this allowed us to fit bigger chainstays on the bike and stiffen up the frame.
ISCG '05 Mounting System
Why ISCG mounts? Well, about a year ago we did a custom run of employee 575's and one of the biggest requests was to add ISCG tabs. The reason for this was that most Yeti employees run either a 1x9 or 1x10 gearing setup by using a single ring up front with a chain-guide like the E-13 LG1.
