The Mankind Advance Stem is a high quality stem made from forged 6061-T6 Alloy built at an affordable price thanks to the forged manufacturing technique, don't let the price fool you though it's still a trult robust stem. The Advance Stem comes with a classic 50mm reach & a comfortable 34.5mm rise finished with a really clean, minimal look. section Product Specs TYPE: Top Load REACH: 50mm RISE: 34.5mm CLAMPING DIAMETER: 22.2mm WEIGHT: 340g (122oz)