Aluminium Alloy Deck Base – 175mm Square with TIG-Welded Spigot

Your seat wobbles. Or you're trying to bolt a new one down and the deck plate you grabbed from the hardware store flexes under your fingers. This is the proper fix. A 175mm square, 5mm-thick aluminium alloy plate with a TIG-welded mounting spigot in the centre. The spigot has a nylon bush that accepts a 19–20mm seat post, so it grips without stripping. Six 8mm mounting holes give you solid fixing points through the deck. No flex, no rattle, no 'I'll get to it' six months from now. Bolt it down, drop the seat in, done

• 175mm square x 5mm thick aluminium alloy plate
• TIG-welded central spigot with nylon bush for 19–20mm seat post
• Six 8mm mounting holes for secure deck fixing
• Rigid, high-strength build for heavy-duty use