Bottom bracket spacer - is there such a thing?

so will this effectivly move the whole sealed bb unit across in the frame?
i don't understand how this will work.

The BB is perfect width - however i need to space it out a slight bit other wise the chainring bolts catch the frame. It's only very slightly but by putting a spacer in there it means you're tightening upto something, rather than not screwing it all the way in.

From Sheldon brown:

Ive only known one person to have done this, and they got the spacer from his LBS in cornwall. Worked fine. Unscrewing is unlikely but if you're worried friction grease is the way to go.

no - on any BB it'll work (within parameters) - the left cup can be pushed in more the take up slack

Great advice again thanks will try pop in to the LBS see if he's got one if not will file out a lockring.

And yeah, the left hand cup just goes in further, no probs.