The Serfas RX Men's 176mm Lycra Saddle (Model RX-921L) is a performance-oriented comfort seat specifically designed to maximize blood flow and eliminate numbness for male cyclists. Compared to the much wider 207mm Hybrid version, this sleeker 176mm profile is tailored for Road, Mountain (MTB), and Cross/Gravel bikes, where the rider is positioned in a more forward-leaning, aggressive posture.

Core Technologies

• Narrower 176mm Performance Profile
  Optimizes clearance for your inner thighs, preventing chafing during fast or continuous high-cadence pedaling.
• Male-Specific Pressure Relief Channel
  Features a deep central cutout specifically engineered around male anatomy to protect the neurovascular bundle and significantly reduce perineal pressure.
• Patented Twin Bar Design
  The base is split down the middle so each side of the saddle rotates independently with the natural pedaling stroke of your hips.
• Silk-Tech Lycra® 4-Way Stretch Cover
  Moves seamlessly with your cycling shorts instead of pulling against them, while keeping the saddle cooler than synthetic leather options.
• Dual-Density Base & Gel Infusion
  Incorporates a flexible, rubber-like foundation embedded with friction-reducing Reactive Gel to absorb high-frequency road vibrations.