Schwalbe AV Tube 5 (18") 18–20 × 1.25–1.85 CS-XG-1295-A3 Or you can use the

Or you can use the M6M Monolock adapter plate from GIVI as a fully-integrated mounting option

3D pre-curved design specifically for the female form

PVC coated polyester fabric

making those challenging morning rides to school a thing of the past

Platform Size: 110mm × 117mm × 17mm

Schwalbe AV Tube 5 (18") 18–20 × 1.25–1.85 CS-XG-1295-A3 Or you can use theSchwalbe standard bicycle inner tube no. 5. For bicylce tires in 18" inch (ETRTO 4047 355, 32 369, 37 390, 37 400). Retains air for an above average length of time. Thanks to the best material quality and uniform wall thickness. Maximum reliability that has proven itself millions of times over.