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Yeti Cycles' 2018 SB5 Turq X01 Eagle Complete Mountain Bike gives you everything you want and need in a modern trail-slaying machine. This SB5 gets a no-nonsense build with a wheelset featuring lightweight DT Swiss XM421 rims that are just as wide as a downhill rim from a couple years ago. They spin on DT Swiss 350 hubs renowned for their reliability. SRAM's excellent X01 Eagle drivetrain provides exacting shifts and a 50t bailout gear. The range on offer with this cassette essentially puts extra chainrings and front derailleurs on the endangered species list. Yeti even specs the X01 Eagle crankset, which is the same crank that comes on the top-dog XX1 build. FOX's top-end Factory fork and shock bring super smooth, bump gobbling, terrain taming travel to both ends with the 34 fork and DPS shock.
This SB5 carries Yeti's TURQ designation, which represents the most advanced frame the company can construct. This means a more precise carbon layup that's carefully molded to reinforce key stress points along the frame without adding any unnecessary bulk. This results in a frameset that has strength where you need it and much appreciated weight reductions where you don't, for a claimed weight savings of 350g compared to the standard SB5 Carbon.
The key to the SB5's great balance lies in its geometry. A 66.5-degree angle and a slightly longer wheelbase and reach team up for increased stability when mobbing down rocky and rooty trails at high speed. To make sure the bike isn't a sleeper, a steep seat tube angle and shorter chainstays keep handling agile and intuitive as you hop across ruts at speed and navigate up loose, steep terrain. A low bottom bracket inspires cornering confidence to let off the brakes and lean the bike over.
The Switch Infinity suspension system is key in providing great quality travel that works with you in every conceivable trail situation. This system's linear path allows it to be much more sensitive to small bumps. Yeti can control the leverage ratio and anti-squat with much greater freedom than other systems. As the rear end compresses, the direction changes, and the DH-inspired slider travels down toward the bottom bracket shell to maintain a steady pedaling platform. This change of direction is smooth, without any weird mid-stroke wallow. Deep in the stroke, it works in conjunction with the upper pivot to produce a vertical wheel path that effortlessly flattens big, square-edged impacts. Up or down the mountain, Switch Infinity continues to impress us with the amount of traction the design offers and the efficiency it maintains.
- An all-around trail bike with progressive geometry
- TURQ carbon construction for lightweight efficiency
- 5in of Switch Infinity suspension balances pedaling and comfort
- Long, slack geometry bails you out on big lines and drops
- Boost spacing stiffens the frame and adds extra tire clearance
- Switch Infinity linkage is an engineering marvel
- FOX Suspension cushions the hits
- Item #YTI00B0
- Q & A
- Familiarity: I've put it through the wringer
So right out of the box I was disappointed. I ordered frame protection to be installed by CC, it was not. It also shipped with the wrong size handlebars(The bars were swapped out no problem)Be prepared to replace the wheels and tires on this bike right out of the box. It ships with 25mm wheels and Ardent tires. The Ardent tires have minimal grip and they have to be ridden at high pressures because of the 25mm wheels so if you like pinballing all over the trail these are for you. Yeti knows this is a bad build if you look at the 2019 build they changed the wheel and tire spec. I emailed Yeti 2 weeks ago asking why they built this bike this way and have yet to here back. After raising my concerns about the wheels and tires I was told by CC these wheels and tires are not the best choice for this bike or the type of riding done on it and offered a discount on purchasing new ones. I missed the return window due to a family trip or I would have returned this bike.