Fiend BMX Mid Bottom Bracket

This kit uses the Mid standard, which is the most common size for modern BMX frames. Before purchasing, confirm your frame is specifically designed for a Mid bottom bracket, as it will not fit frames requiring Spanish, Euro, or American standards.

Sealed bearings are essential for BMX because they keep dirt, dust, and moisture out of the internal mechanism. This significantly increases the lifespan of the bearings and ensures your cranks spin smoothly even after heavy street or park riding.

The included alloy tube spacer and additional washers allow you to fine-tune your chain alignment. Proper spacing ensures your chain line is straight, which reduces wear on your sprocket and driver while preventing the chain from dropping.

This kit is designed for standard 19mm or 22mm spindles, depending on the specific version you choose. Always verify your crankset spindle diameter before ordering to ensure a proper fit.

Yes, it includes the bearings, the internal tube spacer, and the necessary external spacers to set up your drivetrain. You will still need a bottom bracket press tool or a rubber mallet and a block of wood to install the bearings into your frame.