We dug a hole about 500x500mm, and 300mm deep, and filled it with B & Q idiot-grade ready-mix concrete (neither of us have done much of this sort of thing before). The steel plate is to be bolted onto this with expanding bolts.
How long does the panel think it might be before:
1. It's OK to roll the bike over the concrete so that it can be parked in its normal spot
2. we can drill the concrete and fix the bolts?
I've assumed that 1. will be ok by tomorrow, but maybe 2. will be a few days?
Any further suggestions for motorbike theft protection considered, too :-)