Blackburn outpost handlebar roll bike bagtake all your essentials with you on your next bike ride, thanks to the handlebar roll bike bag from blackburn. This expandable bag can fit up to 11.5 litres and is suitable for use with a variety of bike sizes and frame types.waterproofthe bag comes with an included welded stuff bag which sits inside the handlebar roll and adds an extra layer of protection. This makes the bag highly waterproof which means that it can be used under a wide range of conditions.expandableto make the bag even more versatile blackburn has made it super expandable which fits both the times you are carrying a lot and the times that you are only carrying a little. This also makes storing the bag, when its not in use, super easy.mounting systemthe outpost handlebar roll bag comes with its very own mounting system that has been built to fit a large range of different bike types. The mounting system is easy to install and fully adjustable.featuresmaterial coated ripstop nylonquick release mounting systemdaisy chain loop webbingcompatible with standard dry bags and stuff sacksmounting options aluminium handlebar mountwaterproof yescapacity 11.5 litresdimensions 304.8 x 609.6mmweight 517gweight limit 3.5kgbuy blackburn bike bags from chain reaction cycles, the world's largest online bike store.