Continental Race 28 Bike Inner Tube (700c x 20-25c) with 60mm Presta Valve Quality tube from Continental is designed for deep section 700c Road Bike wheels Valve is 60mm long and is a Presta style Recommended tyre sizes to suit this tube are: 700 x 20c to 700 x 25c, 27 x 3/4 to 27 x 1.00, 20-622 to 25-630 Inner core is removable