Spank DM 40 World Cup Stem LTD Edition Ride Faster The flagship direct mount stem for DH racers and Freeriders. Limited Edition 100% full CNC, nothing stronger on the market. 31. 8mm and 35mm diameter options with a 40mm length. It features a chamfered bar-clamp zone to reduce stress risers and improve fatigue life in any handlebars. Features Material: 100% full CNC, 7-series alloy Direct mount stem with a 40mm length that balances high-speed stability and precision steering Chamfered bar-clamp zones to reduce stress and improve fatigue SPECIFICATIONSLength40mm Rise Adjustable 16-21mm Rise Bar Clamp Diameter31. 8, 35mm Stack-Material100% Full CNC 7075 Alloy Intended Use Downhill Weight126g - 128g | Spank | Dm 40 World Cup Stem Ltd Edition 35Mm Silver | Aluminum