I always carry a spare chain link joiner along with tube, repair kit, and pliers, a basic multitool, (has a chain breaker as part of it), is a must as well, easily fits inside those bags that hang under the saddle.
I still shake my head at what some of the guys in the group here pay for a basic service, most are north of 300 here, I do all my own maintenance, and can true wheels to less than half a mm, which for a road bike is ok, and for a mtb overkill .
I still shake my head at what some of the guys in the group here pay for a basic service, most are north of 300 here, I do all my own maintenance, and can true wheels to less than half a mm, which for a road bike is ok, and for a mtb overkill .