XD811 ROCKSTAR II | Finish MATTE BLACK W/ ACCENTS | size desc 20X12 | lug count 8.0 | bolt pattern metric 8X170 | bolt pattern standard 8X170 | offset -44 | backspacing 4.77 | centerbore 130.81 | load rating metric 1632.0 | load rating standard 3600.0 | division 10 | barrel config S | shipping weight 50.41 | box label desc M-BLK W/ ACC | finish warranty ONE YEAR | structural warranty LIFETIME | rivet part no SR-021A | lip depth 5.43 | construction type Cast Aluminum | bolt pattern mm16380 170