Mavic Valve Blocking Patches (4-Pack) – Anti-Rattle Valve Pads Quiet down noisy valve stems on carbon or alloy rims with genuine Mavic valve blocking patches. These soft adhesive patches sit under the tube valve stem to stop rattling without needing to crank down the valve nut against your rim. Why riders use them Stops valve rattle inside deep carbon or alloy rims Protects rim finish vs. metal valve nuts digging into carbon Ideal for tubed setups on aero wheels Quick stick-on install, no tools needed Specs Brand: Mavic Model/MPN: 6237438X Type: Valve blocking / anti-rattle patches Qty: 4 patches per pack Use case: Rim protection + noise reduction Condition: New OEM, non-retail Compatibility Works with: Presta tube valves Carbon or alloy rims Road, TT/Tri, Gravel, CX (Not for tubeless valves—use foam sleeves instead.) Packaging / Included (4) Mavic valve blocking patches OEM bulk, includes only what’s pictured No retail packaging