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Mavic Schrader To Presta Valve Hole Reducer


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Product Details

Mavic Schrader To Presta Valve Hole Reducer

Reduces an 8.5mm Schrader hole to a Presta-friendly 6.5mm: this is not an absolutely essential product but using a reducer makes it easier to seat the valve perfectly perpendicular which is a good thing because a squint valve is more likely to stress the tube and perhaps even break away from it.