Here is a link to the Forgestar blog...
http://www.forgestar.com/blog/
Forgestar is proud to announce the newest lineup in the Forgestar collection. New Sizes available in 3-4 weeks. Please contact your local Forgestar Representative for more information.
Approx Sample Weight
18×8.5 +48 17.6 lbs or in metric 7.98kg
18×9.5 +48 19.4 lbs or in metric 8.80kg
18×10 +42 19.2 lbs or in metric 8.70kg
18×12 +68 20.0 lbs or in metric 9.07kg
18″ Fitments
18×8.5 offsets from +26 to +50
18×9.0 offsets from +20 to +55
18×9.5 offsets from +26 to +60
18×10 offsets from +16 to +42
18×11 offsets from +23 to +55
18×12 offsets from +36 to +68
-Andy