The Sram Red Etap Flat Mount WiFli Groupset is the next step in both shifting and braking performance, reliability and speed. It’s constructed using the same incredible technology as all other Red Etap systems, but its hydraulic disc brake system allows for impressive braking in every situation, ensuring you finish the descent without worry. With well over 500,000 miles of testing, including multiple Grand Tours, eTap is ready for the road. The system connects via SRAM proprietary AIREA wireless protocol. This system uses incredibly secure 128-bit encryption, similar to the one used by cash point machines, so security is not an issue. The difference between standard SRAM RED eTap and WiFLi is the 2x drivetrain capability with a wide-range cassette, allowing for a rear derailleur with a 32-tooth cog, whilst the short cage eTap rear derailleur maxes out with a 28-tooth cog. This provides the rider with a wider range of lower gears - ideal for higher cadences and easier hill climbing than a traditional 2x drivetrain. SRAM RED’s entire ideology is faster shifting with more precise and reliable changes and SRAM boasts that adding larger cogs to the cassette will not just cut down on weight but improve reliability, over moving onto a triple when you're looking for a wider gear range. The rear derailleur comes in at a stunning 243 grams with the battery, which is just 4 grams heavier than the short-cage eTap, whilst the entire system with 11-32 cassette and a few extra chain links is only an extra 50 grams in total. An extra 50 grams for easier hill climbs and greater accuracy than short-cage eTap, and definitely a weight and performance advantage compared to a triple chainring? It’s a no-brainer. Sram Red Etap Flat Mount WiFli Groupset Features   Provides an easier level of climbing compared to standard short cage rear derailleurs Hydraulic disc brakes ensure constantly reliable braking performance Batteries can be fully charged in 45 minutes YAW front derailleur technology eliminates trim Compatible with the Garmin Edge 1000 for live shift notifications Race-car inspired shift logic Up to 1000 kilometres of riding per charge AIREA™ connectivity preventing interference Designed to work with SRAM PowerGlide™ and PowerdomeX™ cassettes Designed to work with SRAM X-GlideR™ 11-speed chainrings Limitless aero configurations Replaces standard drop bar shift levers Includes: SRAM RED eTap Shifters SRAM RED eTap WIFLI rear medium cage derailleur (32T max) and battery SRAM RED eTap WIFLI front derailleur and battery SRAM RED eTap hydraulic disc brake system, front and rear calipers and hoses SRAM RED eTap charger and cord SRAM RED eTap USB stick and quick start guide