The Syncros 650B Presta Valve Inner Tubes have been designed using nothing but the highest grade materials so you can be sure that they will perform to the highest standard. These inner tubes have been designed for MTB use to provide you with the smooth ride you deserve. These syncros inner tubes have a thickness of 0.6mm and they will reduce the rolling weight when you’re riding. These inner tubes have a Presta valve so be sure you have the correct pump to inflate your tyres if you want to use them. Syncros 650B Presta Valve Inner Tube Features Designed for: MTB Size: 26 Width: 2.2/2.5 Valve type: Presta Thickness: 0.6mm