Using these pedals is straightforward. Just attach them to your bike as you would with any regular pedals. Make sure to adjust the 10 pins on each side according to your grip preference. For different shoe sizes, choose the appropriate large or small size. When riding, the concave platform will keep your feet firmly in place, especially during downhill and enduro rides. As for maintenance, use the grease port to add grease regularly to keep the pedals running smoothly. The premium bearings and seal system ensure long - lasting performance. There's no need to worry about rider weight as there's no restriction. The 5 - year warranty gives you peace of mind, but handle the pedals with care to avoid any unnecessary damage. And remember, the forged 6061 - T6 aluminum body and forged scm 435 chromoly steel spindle are strong, but don't subject them to extreme abuse.