Diamondback 2013 Insight STI-1 Performance Hybrid Bike with 700c Wheels Butted 6061-T6 Aluminum Insight Performance Hybrid Frame Insight Integrated Hi Ten Ferrous Aero Straight Blade Fork SR Suntour Single Ring Crankset w/ Integrated Chainguard Tektro Alloy Linear Pull Brakes Equation Double Wall Alloy Rims