Topeak Fastfuel Bolt-On Frame Bag Description: The Topeak Fastfuel Frame Bag is a top tube bag with built-in water bottle bosses for any bike's top tube. The wide water bottle bolt holes allow the necessary fit adjustments for different bike frame sizes, as well as quick and easy access to energy bars, gels, and other energy products you may require while riding. Features: Can be attached with bolts to integrated frame bosses or with straps on the frame's top tube Fits 30 - 50mm diameter head tubes Fits 35 - 75mm diameter top tubes Secure, scratch-free straps 0.5L capacity Specifications: Pack Type: Frame Bag Pack Capacity: 0.5L Mount: Top Tube Bosses Waterproof: Water-Resistant Material: Polyester Dimensions: 18.7 x 8.2 x 4 cm Color: Black Weight: 70 g