Continental Supersonic Tube (700 X 20-25, Presta Valve) Size:42mm Valve The four arms

The four arms

The rocker arm was optimised to interface with sprockets that have from 11 to 32 teeth

6 (choose from drop-down)

Extremely durable tires for performance training

The classic titanium King Cage now with a matte black Cerakote finish

Continental Supersonic Tube (700 X 20-25, Presta Valve) Size:42mm Valve The four armsUltra light weight inner tube. The Continental Supersonic road long valve inner tube is a must have cycling essential for 700c bike wheels. Super lightweight butyl tube, even lighter than latex but not porous, so no need to reinflate every day. Can also be fixed with a normal puncture kit. The long valve inner tubes enables you to use deep section rims (40mm, 50mm and above) as the shorter valve would not extend out of the rim valve hole. Shorter