The Endurance SL R Series combined with possibly the lightest groupset on the market in the Sram Red Etap wireless makes this a fantastic choice for anyone seeking an ultralight Endurance (relaxed position ) geometry bike. With its revolutionary wireless technology & removable rechargeable batteries it is the groupset of choice for our very own Ribble Pro Cycling Team who demand perfection to achieve their dominance of the UK cycling scene in 2019.