Offset help

[RuFF21]

i have taken 2 of my alloys off my car to look for the offset and all i can find on the back off them is 17jj :/ i need to know the offset to see if i can lower it more than 35mm i dont think that it is right as its catchs at the moment with 3 people in the car

 

[The Big Yin]

Usually on the back of the spokes it has the ET and a number - I know every set of aftermrket ones i have had have this

 

[RuFF21]

i doesnt mate, ill take the back ones off and check dont understand why its not there ?

what does the JJ mean then?

 

[Michael]

17jj is the size of the rims.....They are 17´s right??

don´t it say more?? wierd cos all my rims had et and size on them too

 

[RuFF21]

no it doesnt say anything else...

ive taken 2 off and they are the same on both of them