Mirage Drive ST Turbo Mast - non-threaded for pre-V2 drives.
A replacement mast for the ST Turbo fins only. It is too long for the other fins. These are very durable, but will eventually work harden and fail if bent back into alignment enough times. So if you're in a stumpy area, having a spare mast isn't a bad idea.
Compatible with both oldest and older (pre-V2) Mirage Drives. On the oldest Mirage drives (those with stainless sprockets), order the stainless steel cotter pin to complete installation. On older drives, the set screw in the sprocket will hold the mast in. You'll need a 1/8 inch Allen wrench to install the new mast.