i just bought a hpi 200mm shell for my tt01 drifter and was wonndering what size offset would work with the body, coz i was told 12mm and it seems like to much

Well the amount of offset depends on the way the wheel arches flare on the particular body you have but I usually just stick on the 7mm offset slidemasters and they fill the the gap nicely.

yeah the 7mm or even 8.5mm slidemasters will work. The 8.5 mm's are a perfect fit on the HPI 350 Greddy Z go look at how wide it is and that should help you calculate for your shell.

7 or 8.5 would be fine,

what rimz are you looking at right now?

for speedwaypal 37r sliders i would use 7 or 8.5 offset front and 10 at the back. tt-01 is not really a 190mm chassis its a tad bit smaller, so when you mount a 200mm body you can run the wildest offset and it will still be flush.

with 0mm offset wheels should it be 187mm wide coz i only get 180mm