The Marin Stinson 1 Hybrid Bike brings a new level of comfort and control to your ride. This model has a lightweight Series 1 aluminum frame with low standover, an ergonomic handlebar, plush saddle, and versatile, high-volume 27.5” tires with mixed tread for control on a variety of surfaces. Design features include our Comfort Control Geometry with upright seating and the ability to touch the ground with the forefoot, while maintaining proper saddle height for pedaling efficiency.Marin Stinson 1 Hybrid Bike HighlightsSeries 1 Comfort, 6061 Aluminum Frame.CrMo Steel Straight Blade Disc Specific Forks with Fender and Rack Eyelets.Vee Tire Co. Speedster, 27.5”x2.35”, Puncture Protection More info