Stem Part Bontrager SC Blendr Duo Base and Computer MountBlendr Duo Base and Computer Mount designed for the 3rd Generation Speed Concept SLR. Blendr works with this simple formula: Base + Mount. Add accessory. Duo Base and computer mount for use with the Trek Speed Concept SLR Aerobar Blendr mount includes computer mount along with Garmin & Wahoo style inserts Add a second Blendr accessory mount (sold separately) for a clean aesthetic Attach your Garmin tether for an additional layer of security