Schwalbe SV7B F/V Tube~20X0.90-1.00~40mm~451Schwalbe standard bicycle inner tube no. 7B. For bicycle and wheelchair tires in size 20" inch (ETRTO 23 25 451). 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. ETRTO: 23 25 451 Weight: 85 g Valve: SV Valve length: 40 mm Bead: Butyl Execution Tube: Standard Item: 7B

65mm deep/26mm wide NACA rim profile produces super low drag and stability in cross winds

Featuring a durable PU coating on the surface

Optimized lever axle position with additional contact point and refined ergonomics

Model No: BL-M6100

Patented Enzyme Stabilization in Tube

The gravel-specific 2x12 option maintains tighter rear cassette gear steps

Essence pack UV Essence to prevent sunburn stains on adult skin

the stress-free operation is one of the most important feature to lead all day riding comfort with braking and shifting

With KMC's Double X Bridge design chain shifts are crisp and smooth

They are available in black and silver

This can be charged with a small magnetic adapter without needing to remove covers or casings

Optimized gear combination and gear ratio for trail riding by front and rear system