What makes the 575 carbon such a winner? Simple, it's one of the best-handling, efficient-pedaling, long-travel bikes on the market. Ride one and you'll understand. A custom hydroformed 7005-series aluminum tubeset is the core of the 575 design. It's mated to a rear end using carbon fiber chainstays and carbon fiber seatstays which offers 5.75" of rear wheel travel. Yeti's geometry and linkage design means stability at speed, efficient pedaling, and no brake jack. Claimed 5.9 lbs Custom sealed Enduro MAX bearings Accepts 30.9mm seatpost, 73mm BB, and 1 1/8" threadless headset 51mm IS mount for disc brakes Easily tuned to suit your rider weight and style with the Fox RP23 shock Weight LG: 6.5 lbs Carbon fiber seatstays Carbon fiber chainstaysPlease Note:Complete bike image for illustration purposes only...this is a frame not a complete bike.