Niner

Frequently Asked Questions

• What is Niner’s CVA suspension and how does it change pedaling and descending performance?

  Niner’s patented CVA (Constantly Varying Arc) is a short dual‑link four‑bar layout tuned for 29er geometry that provides calibrated anti‑squat for efficient pedaling and an active, supple feel over rough terrain. The design keeps the rear end supportive under power while remaining sensitive to small bumps, so climbs stay efficient and descents feel composed and controlled. You’ll find CVA on flagship models like the RIP 9 and many WFO variants.
• How do the RIP 9 and WFO compare for enduro and aggressive trail riding?

  The RIP 9 is Niner’s long‑running flagship full‑suspension platform that emphasizes a balance of pedaling efficiency and capable descending with CVA tuning, while the WFO is the more aggressively geared enduro bike with roughly 180mm front / 170mm rear travel for harder charging descents. Both are built around 29‑inch wheels for big‑terrain momentum, but the WFO typically runs slacker geometry and more travel for steeper, rougher lines. Choose the RIP 9 if you want a proven, race‑oriented full‑susension platform and the WFO if you need maximum descending capability.
• What frame sizes and geometry adjustments does Niner offer to help riders find the right fit?

  Niner offers a five‑size range (XS, SM, MD, LG, XL) and contemporary geometry specs—trail models commonly sit around a 66° head angle and a 75.8° seat angle—with flip chips on many frames to tweak head angle and bottom bracket height. Frames use 30.9mm seatpost diameters, Boost hub spacing, and PF30 bottom brackets, so component choices are straightforward when dialing fit. Test or compare stack/reach numbers across sizes to match your riding position and terrain.
• Which Niner models should I choose if I prioritize true 29er rolling momentum versus more playful 27.5 compatibility?

  Niner’s core DNA is 29er performance, and most models are optimized for 29x2.4" tyres to maximize rollover and stability; flagship bikes like the RIP 9 and WFO are designed primarily around 29‑inch wheels. If you want more playful handling or need wider rubber for mixed setups, several frames offer 27.5x2.8" compatibility or up to ~2.6" clearance with specific tyre choices and flip‑chip settings. Pick a model based on whether you value straight‑line speed and rollover (stick with 29ers) or prefer a mixed/plus setup for tighter, more playful handling.