Yeti SB150 T-Series MTB Frame 2021
“Race bred” it’s not just a slogan printed on the sb150 top tube. We’ve been pinning on numbers and pinning the throttle since 1985.
An Inflection Point for Speed – Yeti took Switch Infinity’s winnine heritage and made the leverage ratio more progressive (but not too progressive) to provide greater compatibility with modern shocks and a wider range of racer setups. In addition, the bike has better small bump compliance, ramps up quicker in the mid-stroke, while still allowing for full travel and bottom-out control. Racers spend more time in the supportive part of the curve – when entering toothy sections or carrying corner speed, the SB150 offers something to push against for greater race stage velocities.
LEVERAGE RATE – For some, generating and maintaining speed is an elusive pursuit. When racing against the clock, our curve keeps racers skipping across the top of obstacles with the confidence of knowing there’s more travel available, should they need it. A straighter, more linear progression curve means it’s easier to tune shocks to pair with the suspension kinematics, and we don’t have to rely on damping circuits to compensate. Being able to manipulate the leverage rate without affecting the anti-squat characteristics is unique to our patented Switch Infinity suspension.
ANTI-SQUAT – Across Yeti’s line, they have chosen a relatively flat and high anti-squat curve in the beginning and mid-section of travel where pedaling commonly occurs a.k.a. the pedaling zone. This creates an efficient pedaling platform through your entire pedaling zone, as opposed to one single point. After the pedaling zone, there is an inflection point where the Switch Infinity link moves down, dropping the anti-squat drastically. Riders are typically not pedaling in this zone, so chain forces have less of an effect on the suspensions performance. Decoupling of the chain forces allows the suspension to work more efficiently to absorb impacts making the feel of a Yeti distinct.
Progressive Race Driven Geometry – Designed for shorter fork offsets, the SB150’s headtube angle is slackened and the seat tube angle is way steeper. The reach is also longer with shorter chainstays. Advantage? All of these elements increase the DH prowess and move the rider forward on the bike. But these advantages are not one-sided. The steeper seat angle, short fork offset, and forward riding position also keeps the front wheel on the ground, the power to the pedals and the steering quick and nimble when climbing.
FORWARD BIAS POSTURE – Gives racers the room they need, and centers them on the bike.
SLACKER HEADTUBE – Lower bottom bracket, and longer wheelbase.
TESTED TO DH STANDARDS – High-impact strength, carbon lay-up tuned to go fast and tested to DH standards.
WISHBONE SHOCK EXTENDER – Yeti’s patent pending wishbone shock extender changes leverage ratio, maintains kinematics and maximizes stand over clearance. For racers, the shock can be removed from the frame under two minutes to change a shock tune or perform a race day service.
CUSTOM SHOCK TUNE – Each Yeti model has a custom shock tune that is developed in house. Each tune is specifically designed to work in conjunction with the leverage ratio and anti-squat performance properties the engineering team builds with each frame. The performance characteristics of the SB150 are built using qualitative data from our athletes, and quantitative data recorded from telemetry devices which allow us to derive a tune that both enhances mid-stroke and bottom-out control while maintaining its pedaling efficiency.
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