I reckon 2X25kg bags of cement might make between 75 and 100kg of concrete. I'll ask a builder mate. If I got the shape right I could make it very hard to move. But then I'd have to get an almax chain and figure out how to fix it round my bike! Can't really afford the chain though.
Yeah I think I'll do that. Don't think any amount of noise would stop people where my garage is though as it could be anyone working in any one of loads of gardens or garages. Please do not see attached google map! He he. So the only thing to do would make it very very hard for them to nick at all. I've actually got a ground anchor that I bought years ago but never used. If I done the concrete thing I'd do it so it's harder for them to get the bike than if I used the ground anchor but at least I could shift it easier when I'm done with the garage if you know what I mean.
