PNW COAST STEMCOASTING ALONGTo some riders, a stem is just a stem. With the PNW Coast Stem, that's not the case. This stem is developed to satisfy the tech nerd with a removable Go Pro mount that also works with compatible lights. The Coast stem has a comfortable 7deg rise that places your body in an ideal position for comfort while remaining aggressive. This stem pairs perfectly with the PNW Coast Drop Bar. Features3. 18mm clamp works well with all road and gravel bikes7deg rise is ideal for comfort on long rides Detachable mount that works with Go Pro or a compatible light SPECIFICATIONSLength60, 70, 80, 90, 100mm Rise7degBar Clamp Diameter31. 8mm Stack-Material Aluminum Intended Use Road, Gravel, Cyclocross Weight60mm: 111g70mm: 117g80mm: 123g90mm: 129g100mm: 136g | Pnw Components | Coast Stem | Black | 80Mm, 31. 8 Clamp, Gopro Mount | Aluminum