I have this product.
http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_174492_langId_-1
I am pretty novis at bikes so you will have to forgive me.
Basically does anyone know or have an educated guess as to whether I have to pump the air in straight away after using it or it can wait till the next day to pump up the tyre?
Thanks!