Diamondback Insight 1 Performance Hybrid Bike (2011 Model, 700c Wheels) Butted 6061-T6 Aluminum Insight Performance Hybrid Frame Insight Integrated Alloy Aero Straight Blade Fork Suntour XCT V-2 Crankset w/ Integrated Chainguard Shimano Acera Rear Derailleur / 8-spd EF-50 Shifters Weinmann Double Wall Alloy Rims