Foundation 35mm x 45mm Mountain Stem The Stem of The Foundation You might not think about your stem too often, but it plays a significant role in your bike's performance. The stem attaches your handlebars to the rest of your bike so you can descend and ride with confidence. The Foundation Mountain Stem is a lightweight and durable aluminum stem that is designed for the toughest mountain bike trails. It has a 45mm length and a 35mm clamp diameter. With a four-bolt stem clamp, the pressure will be evenly distributed. Features35mm clamp diameter with a 45mm length Four-bolt stem clamp that evenly distributes the clamp pressure Lightweight aluminum that is highly durable SPECIFICATIONSLength45mm Rise Zero Bar Clamp Diameter35mm Stack-Material Aluminum Intended Use Mountain Weight N/A | Foundation | 35Mm X 45Mm Mountain Stem 35Mm X 45Mm Mountain Stem | Aluminum