WHEEL BRAND

i got these 2 20's for free and not sure what brand they are ...on the center cap it has ST X RR and not sure if the middle one is a x cause its not a full x im guessing ...but ill get a pic up...but any know of a brand that uses...it they are 20x7.5 and has a 40 stamped in the back of one of the spokes...is this the offset

also looks like on the spoke is threaded at both top and bottom so there may have been a insert in the spokes

found what they are they are starr spyders..and i dont think you can get them any more...off corse