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

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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.

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If your Neato has suffered the broken plastic tab spring fault then you can get your Neato XV-11 back to cleaning by installing a threaded eyelet and reconnect the stock spring into the eyelet.  The kit consists of 4 eyelets (Just In Case).  Just drill a 1/16 inch hole close to the broken spring mount, screw the eyelet into place, reconnect your spring and you're good to go.