yeti rennrad Yeti ASR T5 Ultimate XC Mountain Bike

The Yeti ASR T5 Ultimate is Yeti's statement of intent in cross-country racing — a deliberate return to the XC segment after nearly a decade away, built around the conviction that a race bike should give up nothing. At 23 pounds for a size large with 115mm of rear travel, 120mm up front, and a fully integrated RockShox Flight Attendant electronic suspension system, it makes a compelling argument that the trade-offs riders once accepted in XC — between weight, suspension performance, and real-world handling — no longer have to exist. This is the bike Yeti built when they decided to come back and do it properly.

The T-Series Turq carbon frame is where that commitment is most visible. The ASR represents the most ambitious carbon project Yeti has ever undertaken — engineers tested 36 different layup combinations during development, using custom ply shapes, intelligent draping methods, and smooth transitions between carbon plies to eliminate redundant material at every point in the structure. The result is Yeti's lightest full-suspension frame ever. Rear suspension is generated by a flex-stay system rather than a traditional pivot arrangement: the seatstays themselves flex to produce 115mm of travel, delivering the performance of a four-bar design without the hardware, bearings, or associated weight. The frame runs completely wireless — no ports in the frame or swingarm for derailleur or dropper cables — keeping the lines clean and the weight low. Two water bottle mounts in the front triangle round out the practical details.

The T5 Ultimate build is uncompromising at every touch point. RockShox Flight Attendant links the SID Ultimate fork and SIDLuxe Ultimate shock electronically, automatically cycling between open, pedal, and locked modes based on terrain inputs and rider motion — no manual adjustment, no mode hunting mid-climb. SRAM XX SL AXS Transmission handles the drivetrain: wireless 12-speed shifting with a 10-52t cassette and FlatTop chain architecture, controlled by the AXS Pod mounted to the left bar. DT Swiss XRC 1200 Spline carbon wheels form the foundation — 1,302 grams for the set, built around 180 EXP straight pull hubs laced to 30mm internal carbon rims with 24 Revolite spokes per wheel. SRAM Level Ultimate 2-piston brakes with 180/160mm Centerline X rotors handle stopping. A RaceFace Next SL bar at 740mm, Bike Yoke Barkeeper 55mm stem, and 170mm RockShox Reverb AXS dropper round out the cockpit. Maxxis tires — Rekon 29x2.4 up front for grip, Rekon Race 29x2.35 at the rear for rolling efficiency — complete the package.

Design Benefits

1. Flex-stay suspension — travel without the hardware: By replacing pivot hardware with engineered carbon flex at the seatstays, Yeti achieves 115mm of rear travel with meaningfully less weight and mechanical complexity than a traditional multi-pivot design. The near-linear progression and 20% sag target keep the suspension active through the small bumps where XC speeds are won and lost — sensitivity you'd expect from longer-travel bikes, packaged into a 23-pound XC platform.
2. Flight Attendant — suspension that adjusts itself: The RockShox Flight Attendant system monitors terrain in real time and automatically sets the fork and shock to open, pedal, or locked based on what's happening beneath the bike. On a mixed XC course where open climbs, technical chop, and flat sprints follow one another within seconds, the system eliminates the cognitive load of manual suspension management and keeps the bike in the right mode without rider input.
3. Carbon built from scratch, not refined from existing tooling: Yeti's 36-layup development process was a ground-up engineering exercise. Custom ply shapes and intelligent draping reduce the overall piece count, cut redundant material, and deliver Yeti's lightest full-suspension frame ever. The wireless-only architecture — no cable ports in the frame or swingarm — takes the weight savings further and reflects a clean design philosophy that treats wireless components as a requirement, not an option.
4. Race-grade wheels standard: The DT Swiss XRC 1200 Spline Carbon wheelset is genuine race specification — 180 EXP straight pull hubs, 30mm internal carbon rims, Revolite spokes, 1,302 grams for the set. This is a wheelset riders spend significant money adding to lesser bikes. On the ASR T5 Ultimate, it's the starting point.

Final Take

The Yeti ASR T5 Ultimate is for the rider who races XC or trains at race intensity — someone who understands what every pound means on a sustained climb and wants their equipment working at the same level they are. It's also a technically compelling bike for anyone who follows frame engineering closely: the flex-stay approach, the 36-layup development story, and the wireless-only architecture are worth understanding regardless of how you ride. At $14,300, nothing on this build was chosen for cost efficiency. It was chosen because it's the right part for the job.