Sunday freeze top load stemthe freeze topload stem uses a die cast aluminum body with forged 6061 t6 aluminum face plate with embossed sunday logo it has recessed sides and bottom section to reduce weight with sundays choices of materials and design they are able to offer the same stem used by the sunday team at a very affordable price featuresreach 52mmstack height 33mmrise 34mm 1mm drop when invertedclamp bolts 81 25mm x4pinch bolts 81 25mm x2weight 10 5oz 1 18 52mmbuy