Here is a nice little 10 screw replacement set for the front bumper of your Neato XV-11 robot.  This set consists of 9 flat head phillips black oxide 1/2 inch long screws and one 3/8 inch flat head phillips black oxide  screw.  The complete set is just $10 plus $3.00 USPS shipping.

Just use paypal to send $13 to:

e_vickery@bellsouth.net

                                - or -

Here is a solution to the missing brass bushing used on the beater brush of your Neato.  A small amount of tooling will be required for proper mounting of the ball bearing into the brass bushing holder.  You can order a set of sealed bearings to install into the orange rubber end caps on each end of the stock beater brush.  Just send a paypal payment of $15 plus $1.75 USPS shipping to e_vickery@bellsouth.net and mention what you are buying.

                                         - or -