About this item This fits your . Make sure this fits by entering your model number. Low fluid resistance and stability: Power regulation technology allows you to maintain quiet and consistent driving conditions every time you ride a bicycle indoors. The noise level at 20 miles per hour is 64-68 dB. Almost any bicycle can be connected, including road and mountain bikes with 24 "-28" or 700c wheels. Please note that the bike trainer itself has no noise-producing parts so it’s nearly silent if you roll the front roller of the trainer by hand. The humming sound generates from the vibration resonance and friction between tires and the trainer. And the normal sound of our turbo trainer is 40-60 db. 8 kinds of resistance settings -8 grade magnetic resistance can meet your specific needs for resistance and speed; resistance controller is installed on the handlebar to easily adjust the resistance If you have any questions about the products you received, please feel free to contact us, we will reply you as soon as possible, our team is online 24 hours.