Why doesn't my (battery-powered) light work in the cold?
If the lights turn off in the cold even with fresh batteries, then you may have a faulty solder joint. As the light gets colder, the components in it ...
Recommendation for easily breakable bike lock
Are general-use ball bearings okay?
If I mount a standard (tube needed) tire on a tubeless compatible rim will it be easier to remove when I get a flat?