Have you looked at the Abus lock range to protect your bike?
Abus locks are one of the most secure bike locks available. Their motorcycle locks are made with high quality materials and feature an advanced locking system. Making them extremely difficult to break. They provide the rider added peace of mind, when looking for ultimate security. Abus Granit ground anchor is one of the best on the market specifically designed to securely hold bikes, motorcycles, Atv's & E-bikes. The anchor is placed into the ground and you use a chain or lock to hold them securely to the ground anchor. Abus offers a two year manufacturers warranty covering material defects with normal t&c's applying.
https://www.kaitaiamotorcycles.co.nz/products/abus-granit-wba-ground-anchor
Kaitaia Motorcycles, Kaitaia Northland New Zealand