A spare tube is a must in every rider's emergency repair kit to ensure that you're never caught out with a flat tyre. This high quality Kenda tube is both dependable and affordable. It's the perfect tube for your bike - a real solid choice that is built tough to last and won't break the bank. Designed for 700c wheels which are the most common road bike wheel size. Best suited to tyres with width of 20-28mm. Comes with a presta valve that is 48mm in length. Also suitable for a wheel size of 27 x 1" - 1/4".