Tools for Removing Ofmega Mistral BB
 

I need to remove an Ofmega Mistral BB from one of my bikes. It's one of these:

http://bikeforums.net/attachment.php...hmentid=464366

Velobase says I need a "Spanner, Locknut Wrench and Fixed Cup Wrench", but I'm somewhat new to this and don't know exactly what size wrenches I need.

VeloBase.com - Component: Ofmega Mistral

Does anyone know exactly what tools I need to order for this job?

Well, most bottom brackets are pretty standard.

I would use this to get off the locknut: Park Tool Co. » HCW-5 : Crank and Bottom Bracket Wrench : Crank Tools
I would use this to take off the cups: Park Tool Co. » HCW-4 : Crank and Bottom Bracket Wrench : Crank Tools

Remember that the fixed cup is reverse threaded.
Every now and then, the fixed cup is stuck. Then, you need to make a Sheldon tool.

Lock ring wrench, pin spanner, and fixed cup tool. I like the Sugino tool set, long out of production, but it came with everything you need. Unfortunately, the Sugino set has gotten expensive lately. Hozan lock ring wrench is superb, but if this is a one time job, even an adjustable wrench will work.

Park sells a fixed cup wrench with a pin spanner on one end. Any bike shop will have one. (HCW-4).

The question on the cost of tools is how often do you plan to use them? If you are going to routinely do this kind of work, then getting good tools is a worthwhile investment. If it is a one time job, then head to the nearest co-op and use their tools. I love tools, so any reason/excuse to get some nice ones is reason enough for me.

The fixed cup thread is reversed if it's English thread (1.375" X 24 tpi) (which is likely) or Swiss thread (35 mm X 1mm)(very unlikely).

The fixed cup is not reversed if it's Italian thread (36 mm X 24 tp)(which is most likely) or French thread (35 mm X 1mm) (less likely)

I probably should just head to the co-op. Thanks for all of the info though.

Heed rhm in post #4 as to thread direction for the fixed cup. Likely English thread, which uses left hand thread, but Italian or French could be somewhat likely as well...

Best fixed cup removal tool would be an big bench vice with good, flat, straight jaw edges, Put the frame/BB right over the vise, tighten it against the fixed cup flats and turn the frame as needed to break free the fixed cup, while putting downward pressure over the BB. No fixed cup ever defeated me when I did this, even the real tight ones.....

Thanks. It's Italian threaded - De Rosa.

Do you have the whole Ofmega groupset? Would love to see pics.

Nope, just the crank and BB.

http://bikeforums.net/attachment.php...hmentid=464420