There are a huge range of upgrades available for many turntables, particularly Linn and Rega. These include platter mats, motor controllers, platters, suspension kits, and vibration absorbers (in a separate category).
20mm thick high quality acrylic platter
Ceramic bearing sleeve for Rega turntables
Suitable for Rega , NAD, Goldring turntables
Aerospace alloy and blue springs