Salt Plus's Field Stem system has opened up with a Front Load option, utilising STC (Shark Tooth Clamping) technology that keeps your bars slipping out on large impacts. Fully CNC machined from 6061-T6 alloy giving the Field Stem maximum strength & durability with CNC details on the underside reducing weight. That STC system inside the clamping area bites onto bars to keep them locked in. section Product Specs TYPE: Front Load REACH: 50mm RISE: 7mm CLAMPING DIAMETER: 22.2mm WEIGHT: 325g (11.52oz)