Saw this while browsing on eBay (as you do ....)
http://www.ebay.co.uk/itm/Honda-cb400f-grab-rail-/291632296496?hash=item43e6a3b230:g:slQAAOSwwE5WYx0jListing says these were fitted to Asian market bikes. Maybe they were, Parts List doesn't cover these variants.
Looks quite neat, would give a pillion passenger something to hold on to if that's what you need.
If I didn't already have a rack fitted I could be tempted just for the look.
Seller has grab rails for various other bikes. Listing also says the seller has racks for the 400/4 available, with pics.
