SB5+ T-Series X01 Eagle Complete Bike
Shopping for a mountain bike can be an experience in unsupported superlatives and breathless hyperbole, with every bike from every brand positioned as the do-it-all quiver killer—which is never true. Well, almost never. The SB5+ T-Series X01 Eagle Complete Bike actually manages to straddle every line in an impossible Venn diagram: a climb-happy machine that's ready to get nasty on enduro terrain. Sure, it doesn't go up as fast as a hardtail rocket, and you can't simply close your eyes and point it downhill like a 6+ inch enduro brute, but the SB5+ rewards cyclists who relish all aspects of knobby tire life by virtually eliminating any weak spots.
The SB5+ features some geometry tweaks that enable it to ride as a true plus-bike, with ample tire clearance for 3in tires to dominate loose banked corners and precarious rock gardens. While overall frame geometry stayed quite consistent between the SB5 and the SB5+, it's notable that the rear triangle saw a major redesign with elevated chainstays that allows for increased rigidity and tire clearance. Still maintaining short and snappy a rear end, the elevation of the chainstays simply takes them up and out of the way with an arc that increases clearance space while keeping the stays at 17.2-inches for quick power transfer and nimble handling.
Staying close to the rear end, you'll find the switch infinity rear suspension design that effortlessly transitions through travel for a buttery-smooth ride. With a translating pivot it switches directions to move through your travel as you ride, maximizing anti-squat characteristics so you don't lose power in your pedal stroke. The linear path of the system moves with little resistance, allowing small bump sensitivity and pedaling efficiency in the beginning of the travel, but soaks deeper when further into the travel to take square edge hits and drops with ease. When paired with Fox's Performance DPS rear shock with 127mm of travel you'll find a capable trail bike with 5-inches of play-ready suspension hungry for techy tree lines and rock gardens. And for those gnarly and steep tree lines, Yeti's engineers set you up with a slacked out 67.1-degree head tube angle that feels planted and bombproof, with confidence inspiring geometry that's eager to devour the descents.
A complete package should pair a high performance frame with the top level materials, so Yeti offers the SB5+ frame in their high-modulus Turq carbon fiber. Weighing in at a miniscule 5.34lbs, the frame has a flawless balance between compliance and stiffness, with reliable manufacturing techniques that lead to minimal resin pooling, strong joints without excessive materials, and unsurpassable durability. Turq level carbon is the cream of the crop, and on the SB5+ it feels smooth, solid, and aggressive as it tackles every trail you point it down.
- A trail bike with XC speed and enduro capabilities
- 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
- FOX Suspension cushions the hits and keeps tires glued
- SRAM's Eagle drivetrain ensures you always have a bailout gear