1. Dim the tablet display. First up, and perhaps the simplest way to save battery life, is to dim the tablet display, much like you would on a desktop or laptop PC. Simply visit the battery usage page, opt out of the auto-brightness controls, and manually dim the brightness as you see fit.
Where is the Bottom Bracket on a bicycle? In a nutshell. Your bottom bracket is housed in the bottom bracket shell of your bike frame, it connects your chainset to the frame and allows the cranks to turn smoothly. When selecting a replacement bike bottom bracket you need to make sure that you get the correct model.
Gas. Some cyclists prefer to use gas cylinders to pump up tires. This type of pump is the smallest of all the pumps and will fit into any small pack on the bike. The gas cylinder fits inside a small housing. The housing attaches to the bike's valve and then a small trigger is used to discharge the gas into the tube.