XD870 BOMBER | Finish MATTE BLACK | size desc 20X10 | lug count 6.0 | bolt pattern metric 6X135/6X139.7 | bolt pattern standard 6X135/5.5 | offset -18 | backspacing 4.79 | centerbore 106.1 | load rating metric 1202.0 | load rating standard 2650.0 | division 10 | barrel config R | shipping weight 49.66 | box label desc M-BLK | finish warranty nan | structural warranty nan | rivet part no BRDGRBOLTB | lip depth 1.94 | construction type Cast Aluminum | bolt pattern mm17257 135