Mavic Schrader to Presta Valve Hole Reducer

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Mavic Schrader to Presta Valve Hole Reducer

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This adaptor converts a rim which was originally drilled to suit Schrader valve usage so that it now will accept Presta valve tubes.

Perfectly Inexpensive Problem-Solver
This hole converter insert is ideal for traditional Mavic style box section rims to reduce a valve hole from 8.5 mm (Schrader, American valve) to 6.5 mm (Presta, French valve). Advice should be sought about whether this hole reducer may be too deep to use on certain single wall rims with separate bores under each shoulder and only a single thickness around the spoke holes.
• Converts hole size in Schrader drilled rims to take Presta valves
• Perfectly inexpensive problem solver
• Ideal for traditional Mavic style box section rims
• Prevents the tube from bulging through the Schrader hole
• Holds valve stem securely
• Eliminates valve rattling
• Easy to fit
• Reducer lip positions on the outside
• Not intended for use with single wall rims
• Sold individually (for converting one rim)

• Converts: 8.5 mm (Schrader) to 6.5 mm (Presta)
• Material: Plastic
• Width (lip): 9.9mm
• Width (barrel): 8.7mm
• Height: 7.3mm
• Weight: less than 1g
SKU# M40381
Package ID: Small_Package