Electro

If the drive is brick/block paving if you were just planning to bolt down then the bricks will be unsecure so the bike will be too mate. I`d say remove a square metre of the bricks and have a dig, get some concrete info the hole and shutter off a small area that the anchor is going to go that is the same level as the bricks, drop the anchor in, level the cement, put everything back and ur anchor is flush with the drive