The Domain Topload stem follows the clean simple lines of it’s frontload brother. Constructed of 6061-T6 alloy, the Domain stem is fully CNC machined, featuring a 52mm reach, taller 34mm rise, offset rear machining for enhanced clamping & internal machining to remove excess material for additional weight savings. With an overall simpler design, wider faceplate, & larger head 6mm hex bolts, if you’re looking for a clean & refined topload stem that won’t let you down, you’ve found it. section Product Specs TYPE: Top Load REACH: 52mm RISE: 34mm CLAMPING DIAMETER: 25.4mm WEIGHT: 309g