The Diamondback Insight 1 commuter bike is a fun, simple, and worry-free way to enjoy riding a bike. Using a dependable Shimano 7-speed drivetrain and alloy linear brakes, the Diamondback Insight 1 is the perfect commuter bike. Its aluminum frame and integrated Hi-Ten steel straight blade fork give this bike a platform that rides as fast as it looks. The Shimano 7-speed drivetrain with Altus rear derailleur is about as durable as they come. It's operated with a simple and easy to use Shimano EF-51 Easyfire shifter. And the linear brakes provide sure stopping power. Combine those features with Diamondback-patented components and a set of rugged double-wall rims, and you've just found a reliable, great-performing bike for commuting and errands.