Product CatalogueSports and OutdoorsWindsurfing OtherBits and PiecesChinook SDM Mast Extension Cap Back Chinook Chinook SDM Mast Extension Cap Product ID: 178 Brand: Chinook 2026-01-20 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 Chinook Footstrap Retaining System Surf Sail Australia Vent Screw O Ring 10 pack Chinook Rubber Power Joint Joint 8mm Goya Tendon Joint Chinook Delrin Flat Washer Clamcleat CL 250 Gap Closer Patrik Metal Camber Spacer Chinook Vent Slot Screw Chinook Rubber Universal Joint Kit Chinook Fin Bolt Neoprene Washer