SIERRA | Finish GLOSS BLACK W/ MILLED SPOKES | size desc 20X9 | lug count 6.0 | bolt pattern metric 6X135 | bolt pattern standard 6X135 | offset 12 | backspacing 5.47 | centerbore 87.1 | load rating metric 1020.0 | load rating standard 2250.0 | division 10 | barrel config R | shipping weight 40.18 | box label desc G-BLK-MILL | finish warranty ONE YEAR | structural warranty LIFETIME | rivet part no NONE | lip depth 1.81 | construction type Flow Formed Aluminum | bolt pattern mm2391 135