To read why eTap is up there with Bike Radar's Most Wanted CLICK HERE CLICK HERE or the image above to read more about the SRAM eTap system. Riders with SRAM RED eTap can now view their gear profile and battery status on their Garmin Edge 520 and 1000. Both Garmin devices now integrate with ANT+ and provide a data field for both gear ratio (front gear/rear gear) and front and rear derailleur electronic battery status. Shift LeversSRAM Red eTap features race-car-inspired paddle shift logic that virtually eliminates mistaking upshifts for downshifts, while keeping shifting precise, fast, and easy. It’s a logic that is simplified for speed: right lever makes it harder, left lever makes it easier, both levers to change the front ring. Our revised ErgoFit controls seamlessly connect rider and machine with Reach Adjust to fit any hand. You’ll shift more, with less effort and spend less time doing it. Carbon ErgoBlade levers and large SRAM eTap paddles provide positive controls for rider input. Rear DerailleurThe SRAM RED eTap rear derailleur executes shifts the instant you demand it, with military precision. Wirelessly. It’s easy to set up, clean in appearance and delightfully uncomplicated. Mechanical necessities such as a carbon pulley cage, ceramic pulley bearings, and anodized alloy artfully blend with proprietary electronic advancements to deliver a 238g (with battery) shifting wonder. Front DerailleurSRAM Yaw technology changed front shifting forever, eliminating the need for trim. The SRAM RED eTap Front Derailleur makes a good thing better by executing front shifts confidently and quickly over our proprietary wireless communication protocol. The eTap shifter optimizes Yaw adjustments as needed throughout the shift range with no need for rider input. BatterieseTap batteries are literally a snap to remove and charge. Just flip the tool-free battery latch up and slide the battery up and out of the derailleur. Then snap the battery into the USB powered charger and connect the charger to any USB power source or A/C USB adaptor. A full charge takes just 45 minutes to complete.