ELITE STERZO SMART, a triangular roller stand for the front wheel. - Model Name: STERZO SMART - Brand Name: ELITE - Color: Gray/Black - Shape: Triangular - Function: Front wheel roller stand Thank you for viewing. I was using it with Zwift, but I have decided to sell it. There are tire marks, but there are no problems with the operation. The following is a reprint. --------------------------------------------------------------------- Compatible tire width: 56mm Maximum steering rotation: 34° * A device with a valid app installed is required to enable the steering function in virtual rides. The sterzo is a riser block with a steering function that keeps the bike level by placing the front wheel (compatible with tire widths up to 56mm) and employs a rotating pivot. The rotating unit maximizes the stability of the bicycle while riding on a home trainer and ensures freedom of movement up to 34° to the left and right. The rotating pivot is equipped with a practical automatic return system to easily return the handlebars to their original position. In recent years, the world of indoor cycling has seen the emergence of new innovative tools and features to make home training on a bicycle a more immersive and attractive riding experience than ever before. Among them, steering is undoubtedly one of the hottest topics this year.