On my first ride out on a used carbon edge, my chain snapped. It was an old chain and I am sure my n00bie learning of 27 speeds would of made any chain scram in agony. That aside, are there such things as emergency chain repairs kits for the trail, so I don't have to walk back to the car, wheeling my trike in total disgrace? And is it an "all size fits all" type thing? Any info is appreciated!