Product name: Magneto-resistance bicycle training platform 6-level variable resistance bicycle training platform-suitable for 20''/ 22''/ 451'' folding BMX road bike★If you need to prepare for a bike race with the lowest risk, or you do not want to engage in outdoor activities, or do not want your training program to be interrupted by bad weather, then indoor bike coaching is always the best solution.★SpecificationsColour: BlackMaterial: stainless steel/engineering plasticMaximum load: 440LB/200KG (including bicycle)Applicable size: 20/22/451 inchesApplicable models: MTB road bikes can be used★Packing:1 x electromagnetic bicycle turbo trainer1 x front wheel block1 x quick release fork1 set of hardware screw accessories★Note:If you have any questions, please feel free to contact us so that we can provide you with the best service. Please send us an email and a picture of the product in question, we will provide you with the best solution as soon as possible within 24 hours.