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SB150 Carbon GX Eagle Complete Mountain Bike
The long-travel 29er segment has moved to the forefront of the mountain bike market as riders discover how well the wagon wheels carry speed and roll over obstacles, preserving your hard-earned momentum both up and down the mountain. And with the continual push towards longer and slacker geometry, we've been impatiently waiting for Yeti's new crop of big-wheeled Super Bikes to hit the market. After much anticipation and speculation, the SB150 Carbon GX Eagle Complete Mountain Bike has hit our shelves, and it's markedly different than Yeti's previous long-travel 29er, the SB5.5. Right off the bat you'll notice that the SB150 now has room for a water bottle in the front triangle, foregoing the mount on the underside of the down tube that subjected your bottle to mud, grime, and who knows what else. For those of us that ride without a pack and rely heavily on frame-mounted hydration, this is a huge plus. The SB150 also sees extremely progressive enduro geometry with a head tube angle approaching downhill bike territory at 64.5-degrees, longer reach and wheelbase paired with a short 44mm offset fork, and a steep 77-degree seat tube angle that moves the rider weight forward for more control over the front end, as well as a better position for putting power to the pedals while accelerating up a climb. The chainstays are shortened to 17 inches to enhance cornering and provide quick power transfers for getting up over obstacles. In addition to these geometry changes, the suspension kinematics have also been revised for slightly more progressivity, and there's an extra 10mm of travel front and rear. This all adds up to a bike that's incredibly stable on descents, slaying steep enduro stages and chunky high-speed terrain with confidence-inspiring composure, all without losing the nimble handling and playful pop that make tamer trails more enjoyable to ride.
At this point, it's hard to question the benefits of 29in wheels when riders are winning Enduro World Series races and World Cup Downhills on them. Shortly after the SB150's release, Yeti pro Richie Rude piloted the SB150 to consecutive victories at EWS Ainsa and EWS Finale Ligure, solidifying the legitimacy of this new hard-hitter from Yeti and proving that the wagon wheels are here to stay. 29ers simply roll faster and don't get hung up as easily on obstacles, making them a stellar choice for covering ground quickly on rugged terrain. Of course, all of this was brought about by changes in modern geometry, boost spacing, better suspension, and refined frame materials—all things that Yeti took full advantage of with this new bike.
The unmistakable Yeti ride quality comes from their Switch Infinity suspension design. Honestly, Switch Infinity is some of the best we've ridden. It's plush throughout the 6 inches of rear travel, delivering a smooth ride quality that feels like you've got more travel than the numbers show, while maintaining impressive traction across chattery small bumps and square-edged hits alike. The key to its performance is the translating main pivot, aka the Switch Infinity link, which switches direction as the bike moves through its travel, providing excellent anti-squat characteristics for superior pedaling performance, and ideal suspension characteristics as it gets deeper into the travel. For the SB150, Yeti made the leverage ratio more progressive to provide greater compatibility with modern shocks and various rider weights and styles. The refined leverage ratio also gives the bike better small-bump compliance, quicker ramp-up in the midstroke for a more playful and supportive feel, and better bottom-out control while still allowing full travel usage. The SB150 is also the first to employ the patent-pending wishbone shock extender, which maximizes standover height and allows Yeti to fit a water bottle inside the front triangle, all while maintaining compatibility with a coil shock.
On paper, the long, low, and slack geometry with plenty of suspension travel make the SB150 look like a wicked descender, and that it is. By using a 44mm shorter offset fork, Yeti was able to seriously slacken the real head angle for better stability on descents and high speeds, all while maintaining excellent steering precision as the shorter fork offset keeps the wheelbase length in check. The longer reach, steeper seat tube angle, and short chainstays help move the rider forward on the bike, keeping weight on the front wheel for better traction on steep chutes and chunky downhills. Paired with a metric Float DPX2 shock and Fox 36 fork, this bike absolutely rips on the descents.
These geometry benefits are not one-sided though, as the steeper seat angle, short-offset fork, and forward riding position help keep power to the pedals and the steering quick and nimble when climbing. Frankly, we were quite surprised with how well this bike goes uphill in spite of its enduro-focused geometry, clamoring up the loosest, steepest, and most ledgy terrain we could find with relative ease, enough to convince us the SB150 is worthy of being a one-bike quiver.
The frame is constructed from Yeti's C-Series carbon fiber, which offers a fine balance of strength, stiffness, and compliance with a modest 250g weight penalty compared to the TURQ carbon frames. Yeti uses a modified layup schedule that helps keep the cost of the frame down without sacrificing quality. They were also able to incorporate full-length tunnels for the cable routing, giving you a rattle-free ride and simplifying maintenance since it's so easy to feed your cables through the frame. The frame is tested to DH standards, well beyond what most others do for a 150mm trail bike. It has to be strong enough for a bruiser like Richie Rude, who makes the earth shudder underneath him while riding, so it's certainly tough enough for the rest of us. Yeti is confident enough in their carbon that they are now offering a lifetime warranty on the frame, just for good measure. Also, it's worth noting that the rear triangle has clearance for up to 2.5in rubber, letting you run high-volume rear tires if desired.
- Yeti's 29er enduro bike ready for charging steep, technical lines
- 29in wheels easily roll over obstacles and cover ground quickly
- 6in of Switch Infinity travel delivers a plush yet efficient ride
- Carbon frame is tested to DH standards for strength & durability
- Longer, lower, slacker geometry is impressively stable on descents
- Short offset fork balances slack geometry with precise steering
- Steep seat tube angle keeps things pedal-friendly on the climbs
- Shock extender allows room for water bottle in the front triangle
- Item #YTI00DN
- Q & A
Monster Truck Smash
- Familiarity: I've used it several times
Yeti get's it right! I've rode a few before and although I have always been a fan of the SI link for some reason I haven't just jived with the bikes. The SB5c when it came out although light playful, to me nervous twitchy. I was all excited for the SB6 and a great climber but I felt it lacked confidence in the front to really rally the the turns unless a berm was involved. To say the least I was excited and a bit apprehensive when jumping on the SB150. I also don't put much stock in the Geo numbers anymore I simply want to ride it and see if it works......
So I picked it up the SB150 strapped on the Shockwiz and proceeded to hit the rough and rowdy trails that I consider the norm. I'm a long travel kind of guy and if it isn't at least 160 up front meh someone else can ride it.
This fits the bill and doesn't under deliver at all. Handles the rough, rolls in the smooth and climbs really well for a LT bike which is all what you have heard before. Ok, so on to the stuff most won't say. Seat tube angle great, it's super steep and for the really steep climbs it's awesome but for the rest of the day I feel it kind of sucks. I feel that it positions me way to far over the cranks even with the seat slid all the way back, which when pedaling puts more of an emphasis on legs and doesn't engage the glutes which can wear you out a bit sooner. However it will climb a brick wall if you can get the traction. My only other gripe is that I feel it lacks a small amount of mechanical type grip in the flat corners. It rolls in with a lot of speed, turns in beautifully and then the front starts to slide and push. It's transparent and you can feel it loose traction and it will cause you to shift a little body weight over the bars when it happens which is easy to over come and rally on, but I think something is missing. (Disclaimer here: this is being really really nitpicking)
Great climbing LT 29er
Bottle Cage Bottle Cage Bottle Cage
smooth suspension and light feeling bike
Aggressor tire is for trail riding not Enduro
I would like more room to strap tubes, tools etc on frame
Like to see some rubber grommets or sleeves on the cable ports