Product CatalogueSports and OutdoorsWindsurfing OtherBits and PiecesChinook SDM Mast Extension Cap Back Chinook Chinook SDM Mast Extension Cap Product ID: 178 Brand: Chinook 2025-07-18 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 Select Fin Box Adaptor Bic (Trim) Dynafiber Rubber Power Joint Boge 10mm Chinook SDM Mast Extension Collar And Pin Patrik Power Box Box Blanker K4 Fins Slot Box Box Blanker 90mm Goya Footstrap Anti Twist Washer Patrik Metal Camber Spacer Surf Sail Australia Vent Screw O Ring Surf Sail Australia Mini Tuttle Plastic Cover Patrik Plastic Camber Spacer