Hello and welcome to my listing for a  

HONDA CB400F CB400/4 SUPERSPORT BARRELS & PISTONS.

These are FIRST RE-BORE I.E +0.25 size. 

The bores all look to be in good order with no scoring or marks  and pistons look quite new

and to have had little use. 

One of the pistons is missing its bottom ring, see the very last photo below.

Sadly there is one area of fin damage, see 3rd photo below.

There are lots of pictures below but if you have any  questions please email and thanks for looking