Diamondback 2012 Insight 2 Performance Hybrid Bike (Dark Silver) Butted 6061-T6 Aluminum Insight Performance Hybrid Frame Insight Integrated Alloy Aero Straight Blade Fork Shimano Crankset w/ Integrated Chainguard Shimano Acera Rear Derailleur / 8-spd SLM310 Rapidfire Shifters Equation Double Wall Alloy Rims