Mozartt Mono was created especially for the endure lovers, just like our friend – Andrea Bruno . To stay among the best, he needed a lightweight chain guide, that will keep the chain in the right place while spinning smooth on his XX1 drivetrain. Enduro races are getting the best equipment of its comfort zone, and even such a great ideas as narrow-wide chain rings require a chain guides to stay reliable. Our product won’t let you down on those steep rock sections despite the way you ride them. We used just the upper guide (with easy mounting feature), and the bottom slider, which just gently touches the chain. Due to the fact, that our chain guide doesn’t tension the chain, our chain device is really quiet to let you hear those behind you. Have fun on the one of the lightest chain devices in the world of mountain biking!