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Trek Knock Block Headset Upper Assembly

Trek Knock Block Headset Upper Assembly

This item is available and will be dispatched within 7-10 days
Part Number: 536723
GTIN/UPC: 601479576135


Replacement headset parts for your Knock Block system;The Lockring Spacer allows use with non-Knock Block-compatible stems;During an overhaul, it's best to replace all Knock Block components and bearings;



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