Description

Presta valve extenders add either 34 or 52mm of length to your valves. 

Technical Details

  • 52mm extenders work with really deep section rims (like Hed, Zipp or Spinergy)
  • 34mm extenders work with slightly less-deep section rims (like Velocity Deep V's or H+Son SL 42's)
  • Install with Teflon plumber's tape for maximum air leakage control