Holland ExoGrid, Titanium / Carbon Road Bike-2014, Di2 Dura-Ace, 58cm, MSRP:$12k Brand: Holland Model: ExoGrid Frame Material: Titanium / Carbon Fiber Fork: Reynolds Carbon Fiber Type: Road Bike Weight: 16 lbs 13 oz Size: 58 cm Top Tube: 58 cm Seat Tube: 59 cm Stand Over: 83 cm Wheelset: Easton R90 SL Shifters: Shimano Dura-Ace Di2 9070, 2x11-speed Brakes: Shimano Dura-Ace Front Derailleur: Shimano Dura-Ace Di2 9070 Rear Derailleur: Shimano Dura-Ace Di2 9070 Crankset: Shimano Dura-Ace 9000 (175 mm) Chainrings: 50/34t Cassette: Shimano Ultegra, 11-speed: 11-28t Handlebar: FSA Energy Stem: Easton AL Seat Post: ENVE Carbon Saddle: Specialized Romin Evo Tires: Vittoria Rubino Pro, 700 x 25c Tire Type: Clincher Pedals: Sold Separately Similar to: Seven Elium SG, Serotta Ottrott Bike ID: 987654321830 Factory Description: Holland is one of only three builders licensed to use the titanium/carbon-fused tubing called ExoGrid. This process involves laser-cutting a titanium tube in diamond patterns and co-molding carbon fiber into it. The result is a titanium tube significantly reduced in weight, with the added carbon providing improved vibration damping and torsional stiffness that the metal tubing alone lacks.