Using the Topeak Tetrarack M2L is a breeze. First, attach the rack to your MTB's full suspension seat stays or a hardtail MTB without rack eyelets. Adjust the innovative top plate so it's level, no matter the seat stay angle. Slide your Topeak TrunkBag onto the rack using the QuickTrack® system and lock it in place with a push of a button. Use the hook and loop strap mounting system to secure your load tightly. When it comes to maintenance, regularly check the mounting straps for wear and tear. Make sure all the connections are tight. If you're cleaning the rack, use a mild soap and water, and dry it thoroughly. Remember, don't use this rack on carbon forks and seat stays, and it won't work with front or rear mounted V-Brake type systems.