Chain repair on the roadEdit
Carry a spare chain link (or better, two, with an inner link portion attached) inside your handlebars. If you have a chain-breakage, you may need to remove side-plates, don't bother carrying a link-remover. Force the blade of a penknife behind the plate to get it off.
Take latex gloves to wear in case of needing to maintain your cycle on route. Punctures happen miles away from washbasins. de:Kurztipps - Fahrradtechnik