Criminal Damage Against My Bike Advise

You could speak to your insurance company recoveries department and see if they can get him to cough up in small claims court and get your insurance premiums backdated back to their original costs?

There would be no insurance on his side that would ever pay up

Small claims court is useless. They don't actually enforce their decisions and in order to actually chase the money, every step keeps costing more and more.

Having been through the process to regain money, it's not one I'd use again. I'd go straight to baseball bat next time.