I have a bike without a bottom bracket installed. I want to install a Campagnolo bottom bracket but I don't know
which one would fit and what would be the length of the spindle.

How do I go about this????

Thank You

You pick a bottom bracket to match your crankset and frame:

• The spindle length, type, and taper need to match your crankset.
• The bearings/cups/cartridge need to match your bike's bottom bracket shell dimensions, and threading if applicable.

What kind of crankset do you have?
What kind of bike are you installing it on?

If you don't already have a crankset, pick that first. Then get the right type of bottom bracket to match.

Agreed, pick the crank first. That will tell you what BB to get.

The existing components on the rest of your bike might dictate the selection of cranks you can look at without having to replace those too.

get them together and skip over the"what length should I buy?" question..

I have the above bike but did not realize that it has a bb installed so I need the tool to remove it. will order it.
The new crank is a Campagnolo nine speed Record. Must get the old bb off before I can go any further.

To Be Continued

Bike shop labor, is a bargain, vs buying a tool only used once..

A Campagnolo Record 9-speed double crankset would normally take a 102 mm bottom bracket spindle, ISO taper. Record and Chorus 102 mm bottom brackets from this time frame are interchangeable. They're available for frames with English or Italian bottom bracket shells.