ENVE x SILCA Valve Extender Set

Make deep-section rim inflation simple and silent. These ENVE valve extenders are manufactured by SILCA and move the Presta valve core out of the rim cavity so you can use standard pumps and CO₂ heads on aero wheels. Each extender includes a small rubber sleeve/gasket that sits at the valve hole to dampen vibration and stop that annoying valve rattle on rough roads. Sold as a pair.

Best for
Tubes or tubular tyres with removable Presta valve cores (not for tubeless valve stems).

Why riders choose them

• Made by SILCA for ENVE – precise fit and reliable sealing.

• Rattle-reducing sleeve – rubber gasket/sleeve helps eliminate valve click inside the rim.

• Deep-rim friendly lengths – common sizes include 34 mm, 45 mm, 75 mm to suit most ENVE SES depths. 

• Sold as a pair – set up both wheels or keep one as a spare.

Fit guide (quick rule)
ENVE recommends your valve length + extender length should exceed your rim depth by ~10 mm for easy pump access.
Example: 60 mm rim + 48 mm tube valve → choose ~34 mm extender (48 + 34 = 82 mm > 70 mm).

What’s included

• 2 × ENVE x SILCA valve extenders

• Rubber sleeve/gasket(s) for vibration damping

Install tip
Remove the presta core, thread the extender on (use PTFE tape if recommended), then reinstall the core in the extender before inflating. (Follow ENVE’s valve-extender instructions for best results.)