Profile Internal Euro Bottom Bracket

This bottom bracket is designed specifically for frames with a Euro threaded shell. It is compatible with shell widths of 68mm, 73mm, 83mm, and 100mm, provided you are using a 19mm spindle crankset.

No, this specific model is machined exclusively for 19mm spindles. Attempting to use it with a different spindle size will result in a poor fit and potential damage to the bearings.

Yes, the kit includes the aluminum cups, sealed bearings, and a set of 2.5mm spacers. These spacers are essential for dialing in your chainline and ensuring the crankset sits correctly within the frame.

The use of 6061 T-6 aluminum provides a great balance of strength and weight savings. It is robust enough to handle demanding riding styles while keeping the overall weight of the bottom bracket down to 155g.

Yes, the unit uses standard sealed bearings. If they eventually wear out from heavy use or exposure to the elements, you can replace the bearings without needing to purchase an entirely new bottom bracket assembly.