Drive Bro Bearing Kit

Precision CNC-machined aluminum replacement for the MD180 rear sprocket bearing housing, bearings, and shaft. Will outlast stock bearings and tight tolerances eliminate the shaft wobble common in custom 3D-printed parts, delivering smoother pedaling. Marine anodizing improves corrosion resistance and surface hardness, while drainage holes and a flush vent make clearing sand and debris simple. It solves the well-known weakness of the original plastic bearing race, which wears rapidly under incorrect chain tension, causing squeaking, rough performance, and eventual failure. Unlike expensive and hard-to-obtain Hobie full spine replacements, the Drive Bro lets you run the chain slightly tighter for better sprocket tooth protection without overloading the bearings. Designed to outlast and outperform the stock plastic system, it is also quick to assemble, disassemble, and maintain.