2x Bike Frame Conversion Bicycle Disc Brake Adaptor Bracket MTB Mountain Holder Product Features High-quality Materials: Made of high-quality Stainless Steel materials, durable and exquisite design, convenient for carrying and using.Good quality at a reasonable price. Easy to Install: The modified bracket can convert ordinary bicycles into disc brake bicycles.Used for refitting disc brake where the original bicycle is not installed. Useful bicycle Accessories: It is necessary for cyclists, practical and practical, and can be converted into ordinary bicycle disc brakes. Size: Package of 20mm or 31.8mm disc brake bracket. Wide Application: Suitable for most of bikes. Product Specification Type：Bike Disc Brake Brack Frame Color：Black Material：Stainless Steel Part Type：Brake Lever For Bike Type：Mountain Bike Grip Ring Interior Diameter：20mm/32mm (Optional) Application：convert ordinary bicycles into disc brake bicycles. Package Included 1 x Bike Disc Brake Brack Frame