When is RED eTap AXS™ available for retail aftermarket purchase? February 06, 2019 15:53 February 6, 2019. Related articles Are there different color variants available? Are the frame fit specs for RED eTap AXS™ road different than 11-speed RED eTap™? Where can I find the frame fit specs? What are the main benefits of the new X-Range™ gearing configurations for RED eTap AXS™? What is AXS™ and how do you pronounce it? Are there rim brake and disc brake options?