Trailhead style toolkit or a long distance tourists get out of jail free card the zyklop c bag has everything you could need to keep you rolling in all but the most exceptional circumstances there is even a chain tensioner ready to convert your steed to a single speed should your rear mech fail zyklop c bag purpose built for emergencies during cycle travel42 travel lightweight and easy to carry perfect size for birzman tools birman feexman mini tool birzman feextube tire lever mini chain