Product Specifications for Scooterteq Electric Bicycles and Ebike Products You must have Adobe Acrobat available on your computer to download these specification sheets.  These files are in high resolution format to facilitate commercial printing quality images and text.  To download Adobe Acrobat, please click the link below and download the Acrobat Reader best suited to your operating system.   Click on the model number or image to download the specification sheet.   Challenger 500C including Anti-theft Alarm System - The Lexus of Ebikes Challenger 500C-XLR Extra Long Range including Anti-theft Alarm System Classique 500R Retro Styling Classique 500R-A including Anti-theft Alarm System   Updated: 06/18/2006