Topeak Fastfuel Bolt On Top Tube Fitting Bag, Black

Amazon

The most compact, aerodynamic top tube fuel box minimizes wind drag while eliminating interference with legs. Mounts by secure scratch-free straps for quick and convenient access to energy bars, gels, or other energy items you need. CAPACITY: 0.4 L COMPARTMENT: One main MATERIAL: PU Leather BAG ATTACHMENT: Nylon straps TOP TUBE DIAMETER: Fits ø35 - ø73 mm HEAD TUBE DIAMETER: Fits ø30 - ø50 mm ADDED FEATURE: Secure scratch-free straps SIZE: 24 x 6 x 4 cm / 9.4" x 2.4" x 1.6" WEIGHT: 74 g / 2.61 oz

Blacks

Capacity: 0.4 L Compartment: One Main Material: Pu Leather Bag Attachment: Nylon Straps Top Tube Diameter: Fits Ø35 - Ø73 Mm Head Tube Diameter: Fits Ø30 - Ø50 Mm Added Feature: Secure Scratch-free Straps Size: 24 X 6 X 4 Cm / 9.4" X 2.4" X 1.6" Weight: 74 G / 2.61 Oz