Pro Head Reinforcement System (PHR)
Larger and more spherical contact area and is designed to balance loads transferred to the rim
Acts like a ball and socket interface allowing the spoke to pivot and follow the perfect trajectory from hub to rim
For use on Spline One rims
Sold as box of 100
Ski, climb, hike, camp, and summit with expert-curated, guide-tested outdoor gear from top brands. Shop online or visit us in Seattle for friendly advice!
Not valid on sale items, Garmin products, or Totem Cams. Other exclusions may apply
© 2026, Ascent Outdoors
