NewsPOPULAR THIS WEEKVideos How SRAM engineers party? With eTap rear derailleur racing (video) By CTT - 0 FacebookTwitterPinterestWhatsApp When SRAM engineers host an after hours social event at SRAM headquarters in Chicago, this is the type of competitive fun you’ll find — eTap rear derailleur racing. View this post on Instagram When SRAM engineers host an after hours social event at SRAM HQ, this is the type of competitive fun you'll find, eTap rear derailleur racing. A post shared by SRAM Road (@sramroad) on Sep 27, 2017 at 4:20pm PDT