About this detail of the Tiger
The first and last road wheels on each side of the Tiger were provided with bump stops so that their torsion bars would not break under extreme conditions. Because the Tiger's swing arms led on one side and trailed on the other, an identical asymmetric bump stop was used in all 4 positions.
This is the bump stop, as seen on the rusted wreck of a Tiger. It consists of a solid rubber block, firmly anchored to the hull wall by a frame with 3 heavy bolts. The swing arm of the road wheel, which would normally collide with the block, is pushed out from this wreck and lies outside it.
During restoration of the Tiger in Bovington museum, the bump stops were removed, allowing us to see their bolts.
On the inside of the vehicle, the bolt heads were in recesses in the hull wall. I don't know the reason for this; perhaps the unit was designed for thinner armour walls?
Because they sit behind the wheels, photographs of these items are almost impossible to obtain. This bump stop is on the Late Tiger in Saumur museum.