Bear in mind the fact that on the avarage TR7 body the rear axle sits slightly off centre (to the right)
At least the 4 cars I checked at home have it.
My Sprint ('t Kreng) sits on 205/50 tyres on 7Jx15 Compomotive rims and it scrapes the RH rear arche slightly.
The DHC is on 195/55 tyres on 7Jx15 Revolution rims and the same here
Both rims have the same ET (25 mm)
I had the Revolutions on t'Kreng before with 195/50 tyres without problems
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<font color="blue"><i>1981 TR7 FHC Sprint (better known as 't Kreng)
1981 TR7 DHC (not very well known yet, but back on the road)
Also a 1980 TR7 DHC, 1980 TR7 DHC FI, 1981 TR7 FHC
http://tr7beans.blogspot.com/</i></font id="blue"></center>