RIDERACE Bicycle Bottom Bracket Adaptor & Conversion Kit, American/BMX to Euro BB68/73

If your have a BMX or marican bike that has an oversized bottom bracket system and you would like to convert it to use the standard size BB, this conversion kit is for you.

A RIDERACE Bicycle Bottom Bracket Adaptor & Conversion Kit is a housing or shell that attached to the bicycle frame and into which the bottom bracket goes into. This adapter has a ranging width of 68-73mm. This means that it is adjustable and compatible with both 68mm and the standard 73mm BB. It also has a 1.37X24mm threading, which is the global standard.

This is an eccentric or expansion Adapter.

What is RIDERACE Bicycle Bottom Bracket Adaptor & Conversion Kit Used For?

• It can converts old-school frames, usually found in American bikes and BMX style to a modern smaller threaded BB holes.
• It allows you to fit a either 68mm BB (which is the modern standard size) or the wider 73mm.
• In a situation where your large bottom bracket does not stay tight because the threads inside your bike frame are worn out. The long screws clamps it in tightly