The two brand new Volcano stems feature an overall wider clamping area, anti-slip grooves along with wider bolt heads, all to help increase holding power and keep your bars exactly where you want them. They also feature some very clean machining, not only to save weight but also give them a personal look and help set them apart from the sea of very similar looking stems out there. .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } ###section### Product Specs TYPE: Top Load REACH: 50mm RISE: 30mm CLAMPING DIAMETER: 22.2mm WEIGHT: 361g