Originally Posted by
LR1953
They're Series 1 Disco wheels alright. The nuts that came with them will be a metric size, whereas S1 is all imperial - Whitworth, BSF, etc.
Early RangeRover steel wheels will also fit, but only on the rear axle. At the front axle they interfere with the hub.
Measurement of rims is from inside to inside of where the bead of the tyre rests on the rim. You'll find your S1 rims measure 5.5" there. The difficulty with using Disco rims on a S1 is the increase in the turning circle - ie you can't turn the steering wheel very far before the tyre wall starts rubbing on the leaf spring. Try laying a S1 rim and a Disco rim on their side, outside up on a flat surface. Now measure the distance from the face that fits against the brake drum down to the flat surface. Compare the 2 measurements. The difference represents the difference in "offset".
Incidentally I'm running 205/80 R16's on my little wunnie, they're comfortable on both 5.5" and 6" rims. Trust this helps.
Rob Shackleton