Product CatalogueSports and OutdoorsWindsurfing OtherBits and PiecesChinook SDM Mast Extension Cap Back Chinook Chinook SDM Mast Extension Cap Product ID: 178 Brand: Chinook 2025-10-18 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 K4 Fins US Box Blanker Surf Sail Australia Mini Tuttle Plastic Cover With Screw Chinook QR Deck Plate No Hardware Patrik GC Tekcam Reduced Cambers Chinook Footstrap Retaining System Marlow 3.8 mm Formuline Chinook 4.0 mm Spectra Downhaul Rope Chinook Mechanical Uni Joint Ezzy Volcano Chinook Rubber Universal Joint Kit