Bicycle Disc Brake Modification Bracket Key benefits Converts a bicycle without a disc brake system into a disc brake bicycle suitable for front or rear wheels on MTBs and road bikes compatible with black color bracket and a range of frame styles Improves braking performance adds disc braking capability to increase braking power, responsiveness, and control enhances safety on varied terrainsins, from rough trails to city streets Easy installation with included hardware compact and lightweight design simple attachment to the bike without the need for complex tools or extra accessories Specifications and features Material: stainless steel for durability and reliability Color: black Inner diameters (original spec): approximately 20 mm and 32 mm Improved ring diameters: approximately 22 mm and 32 mm Ring thickness: approximately 4 mm Hole spacing (centertocenter): approximately 51 mm Mounting size: bracket measures approximately 12 cm x 9 cm x 6 cm Compatibility: front or rear wheel applications on various bicycle types, including MTBs and road bikes Includes: hardware for installation Installation notes Lightweight, compact bracket designed for straightforward mounting Attach to the bicycle frame using the included hardware No complex tools or additional accessories required Use scenarios City commuting with an older road bike: convert for improved braking performance in wet or variable conditions. Trail and MTB use: outfit a nondisc bike to achieve stronger, more reliable stopping power on descents and loose surfaces. Spare or retrofit projects: missing or damaged brake mounting options on compatible frames while preserving frame integrity.