The Oltre XR4 Disc frame and fork are designed for wider tires. The extra free space improves comfort and grip. The Bianchi engineers used Computational Fluid Dynamic (CFD) to refine and optimize every aspect of the Oltre. Aero is everything. In addition, the new Metron 5D ACR aero handlebar is also mounted. With fully internal cable routing through the handlebar itself and through the stem – for the hydraulic brake lines and the gear cables. The Oltre XR4 Disc has been tested and developed in collaboration with World Tour Team Lotto NL-Jumbo.