Bikemate Bike Handle Bar Speed Extender Bike Center Mount Lightweight by BM WORKS Bikemate Bike Handle Bar Speed Extender Bike Center Mount Lightweight by BM WORKS Description: Be light at day, be safe at night. Rapidly extending by using a speed-bar. Features: 1. This mount kit contains one-touch quick button (left and right) extension bar. 2. The speed-bar is removable and creates space for your accessories such as GPS bike-computers and lights and etc. Provides 7" of space to attach a computer, headlights, GPS/navigation devices, smartphone/music players, cameras, mirrors, and more. (Not included.) 3. Can install normal size (25.4) and over size (31.8) handlebar. 4. Can use smartphone GPS and various application for a long time when installing speedbattery pack (sold separately). 5. Dual clamps for a strong and secure hold. 6. Easy to install - tools are included. Dimensions: 180 x 105 x 45mm Weight: 40g (Extender), 80g(Extender + Speed Bar) Color: Black Includes: Extender body, Speed- bar, 3mm/6mm Rubber Pad, 4.5mm Bolts, 2.5mm Hex Wrench