Elvedes BB386 Twist Fit BB to DUB Adapter - High-Quality Bike Bottom Bracket Converter for Road & Mountain Bikes | Perfect for Upgrades & Repairs

Twist fit bottom brackets are easy to install and low in maintenance cost. Only the bearings can be replaced, while the bracket stays in place. The threaded interlocking cups stay perfectly in line, allowing the spindle to run freely without squeaking and creaking