Whether our route consists of asphalt gravel or dirt terrain the Pivot Vault Pro Ultegra Di2 Gravel Bike is built to take on it all. This bike is constructed with a full carbon frame with a hollow core internal molding technology providing a high stiffness-to-weight ratio and all-day comfort. Pivot's patent-pending ISO FLEX seat post technology keeps us pedaling with ease as we rack up the miles. Optimized for speed the Vault Pro features internal cable routing for a sleek aerodynamic look and geometry built for power. We experience quick smooth and reliable shifting performance with the Vault Pro and its Ultegra Di2 groupset. It features a 48/32T chainring with a 12-speed 11-34T cassette providing us with a wide range of gear ratios for whatever terrain stands in our way. A BB386 EVO bottom bracket creates a more powerful and rigid feel during the ride and increases the rear wheel's tire clearance. Its wheel setup is complete with Maxxis Rambler TR Tan Wall EXO 700 x 40mm tires but it's able to fit up to 700 x 47mm to ensure our setup is ready for an epic adventure.