This type is an ideal choice if you want to upgrade a stock unsealed American bottom bracket (American BB) to a modern, sealed system. It is specifically designed to fit complete BMX bikes that come with a 19 mm, 8-spline unsealed bottom bracket.
The Fiction Savage USA – MID BB 19mm is a durable and reliable bottom bracket set, made specifically for frames built to the USA standard. The kit includes a 19 mm diameter, 8-spline spindle and two precision-sealed bearings, ensuring smooth and efficient power transfer. The CNC-machined 6061 aluminum dust caps are not only solid, but also help keep the bearings clean and running well over time.
It’s important to note that this version is designed exclusively for USA-style frames and is not compatible with other MID configurations. With the Savage USA set, you get a drivetrain that spins smoother and responds more precisely — built to withstand heavy use in the long run.
