Silca's Tubeless Valve Extenders are made from the finest cold drawn aluminum bar instead of the common hollow extruded bar, making them 50 - 200% stronger than normal alloy valve stems. They're 40 mm in length and work with standard or tubeless valve stems with removable valve cores. A pair of high-strength silicone Speed Shields are included with the valve stems, creating less air resistance around the valve while also protecting your carbon or alloy rims from getting marred by the valve nuts.
40 mm length. Compatible with removable-core valve stems only. Valve cores not included.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Ordered by Most Relevant First
Best Ive ever used, period.
Was this review useful to you? Yes
Thank you for your feedback.
Articles will open in new tab.
A short primer on emergency bicycle tire repair.
Make your upgrades count. Here's the equipment that will help you ride your bike faster.
Selecting the proper tires for vintage bicycles.
What you need for a road ride.
A how-to guide to removing and installing tires, plus some useful tire tips.
Find your tire size in this exhaustive chart.
Know your tire size. This article provides a summary of the common, and not so common, bicycle tire sizes.
Keep on rolling safely with these tire tips and recommendations.
Tubular, clincher, tubeless? Wire bead or Kevlar bead? Application? Find answers here.
The tube run-down: valves, weights, valve stems, sizing, and more.