Using this Topeak mount is easy. First, figure out if your saddle has vertical or angled rear rails. If it's vertical, go for the Elite 90 option; if angled, the regular Elite is your choice. Adjust the angle to your preference so you can minimize drag and make your ride more efficient. You can put one or two bottles in it, as long as each bottle is no more than 750cc. When it comes to the load, don't put more than 2.5 kg (5.5 lb) on it. As for maintenance, keep it clean. After a ride, wipe it down with a dry cloth. If it gets wet, dry it thoroughly to prevent any rust or damage to the CNC aluminum material. Make sure the mount stays tightly attached to the saddle's V - rail section. And remember, it's compatible with specific Ninja series products, so use them for the best results. Also, take care of the included Micro AirBooster and 16g CO2 cartridges and replace them when needed.