ALPHA | Finish MIDNIGHT BLUE | size desc 18X9 | lug count 6.0 | bolt pattern metric 6X139.7 | bolt pattern standard 6X5.5 | offset 20 | backspacing 5.79 | centerbore 106.1 | load rating metric 1678.0 | load rating standard 3700.0 | division 10 | barrel config S | shipping weight 37.75 | box label desc MN-BLUE | finish warranty nan | structural warranty nan | rivet part no BRRBTARYSTUD | lip depth 1.22 | construction type Cast Aluminum | bolt pattern mm4186 139.7