Ekoi use their own brand ATOP buckles on the R2. Its simple to use and can be adjusted on the bike by Paul Horta-Hopkins · 02/11/2015 Ekoi use their own brand ATOP buckles on the R2. Its simple to use and can be adjusted on the bike Share this:FacebookTwitterWhatsAppPinterestTumblrLinkedInPocketEmailRedditLike this:Like Loading...