Schwalbe AV4 Folding Bike Inner Tube 16 18 inch Schrader Category_Sensors Dependable seat clamps available with

Dependable seat clamps available with the QR option

The low profile design avoids damage from rocks whiles SHIMANO's chain stabilizing technology reduces chain drop and makes for a quiet drivetrain in all gear positions

135mm quick release

Photochromic lens adjust from clear to dark in 7 seconds

Schwalbe AV4 Folding Bike Inner Tube 16 18 inch Schrader Category_Sensors Dependable seat clamps available withSchwalbe AV4 Tube Schwalbe Tube AV4. Reliable, high quality and very air tight inner tubes from Germany's number one manufacturer. All valves are nickel plated and valve inserts are replaceable. Sized for Brompton folding bicycles. Fits ALL tires that are compatible with your Brommie. Fits all of the following size tires: (37 340) 16 x 1 3 8" (28 349) 16 x 1. 10" (35 349) 16 x 1. 35" (37 349) 16 x 1. 40" (28 355) 18 x 1. 10" (35 355) 18 x 1. 35"