Hi all, I'm hoping for a bit of LandyZone wisdom regarding wheel offset if anyone would be so kind! 
I have a Defender 90 with 2 Inch lift, 4 inch pro comp shocks and wide flared GRP arches. These were on the truck when I bought it.
The tyres are currently BF Goodrich Mud Terrain 35 12.5 15's but are dangerously perished so I need to replace them (one is totally split and the others are heavily cracked). The wheels are pretty shabby too so I'm thinking that I'll treat myself to a nice new set of wheels with tyres already fitted. I use the truck on the road a lot and take the kids in it so I want it to be super safe and roadworthy.
I've measured the existing wheels and they seem to be +10mm offset (that is, the inside has 120mm from edge of rim to centre, and the outside has 100mm from edge of rim to centre). First question - does that mean the offset is +10mm? Bit of a weird size as I would expect either 0 offset or a negative offset.
The wheels currently sit just inside the arches front and rear. I like the look of deep dish wheels but my fear is that if I get some modular deep dish 15x10 wheels with ET-32 offset, that the wheels will then sit outside the arch a bit and will bump the arch when I go over rough stuff. What do you think? Maybe I should I go for 0 offset wheels?
Any pearls of wisdom would be appreciated. Thanks.
EDIT:
I guess the questions I meant to ask are:
1) Is the 120/100mm inside/outside offset +10mm?
2) Why do people go for spacers or big negative offsets if it's possible to roll with +10mm offset?
I have a Defender 90 with 2 Inch lift, 4 inch pro comp shocks and wide flared GRP arches. These were on the truck when I bought it.
The tyres are currently BF Goodrich Mud Terrain 35 12.5 15's but are dangerously perished so I need to replace them (one is totally split and the others are heavily cracked). The wheels are pretty shabby too so I'm thinking that I'll treat myself to a nice new set of wheels with tyres already fitted. I use the truck on the road a lot and take the kids in it so I want it to be super safe and roadworthy.
I've measured the existing wheels and they seem to be +10mm offset (that is, the inside has 120mm from edge of rim to centre, and the outside has 100mm from edge of rim to centre). First question - does that mean the offset is +10mm? Bit of a weird size as I would expect either 0 offset or a negative offset.
The wheels currently sit just inside the arches front and rear. I like the look of deep dish wheels but my fear is that if I get some modular deep dish 15x10 wheels with ET-32 offset, that the wheels will then sit outside the arch a bit and will bump the arch when I go over rough stuff. What do you think? Maybe I should I go for 0 offset wheels?
Any pearls of wisdom would be appreciated. Thanks.
EDIT:
I guess the questions I meant to ask are:
1) Is the 120/100mm inside/outside offset +10mm?
2) Why do people go for spacers or big negative offsets if it's possible to roll with +10mm offset?
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