Using these pedals is straightforward. Just attach them to your bike following the standard installation process. Make sure to adjust the 10 pins on each side according to your preference for grip. When riding, you'll notice the concave platform keeps your feet secure. For maintenance, use the grease port to add grease regularly to keep the premium bearings and seal system in good condition. There's no max rider weight restriction, but still handle the pedals with care. Store them in a dry place when not in use to prevent rusting. If you have a problem, the 5 - year warranty has you covered.