The mechanical Brake Caliper Mount is designed for mounting the brake caliper on the wheel of the Dualtron Ultra and Dualtron Ultra 2. Each product includes one mounting bracket for one wheel. If you need mounting brackets for both wheels, please purchase this product twice. For brake mounts compatible with other Dualtron models, such as Dualtron Thunder, Eagle, Spider, Dualtron 3, Dualtron Storm, and Speedway 5, please refer to the specific product listings.