Product CatalogueSports and OutdoorsWindsurfing OtherBits and PiecesChinook SDM Mast Extension Cap Back Chinook Chinook SDM Mast Extension Cap Product ID: 178 Brand: Chinook 2026-06-05 From: $14.99 AUD View or buy the Bits and Pieces Windsurfing Other - Chinook SDM Mast Extension Cap from Chinook to discover other options and shipping details. Description Plastic cap for Chinook SDM mast extension. OD 48mm fits 44mm tube Back to Windsurfing Other - Bits and Pieces More Bits and Pieces and others in our range Dynafiber Rubber Power Joint Boge 10mm Chinook SDM Mast Extension Collar And Pin Chinook Footstrap Retaining System Surf Sail Australia Vent Screw O Ring 10 pack Patrik Tube Rod Batten Joiner Streamlined Quick Connect Deck Plate Patrik Tuttle Box Box Blanker Chinook Rubber Universal Joint Kit Surf Sail Australia Mini Tuttle Plastic Cover Patrik Tendon Joint