Some parts on a motocross bike will require special skills to fix when broken. When restoring bikes I have had cracked parts welded, titanium bolts replicated and used various techniques to clean up various steel and aluminium (frame) parts. It is now that I’ve combined powers with the skillful people who have helped me out in the last years.
Steel welding mig/tig
Aluminium vapour blasting
Aluminium & titanium hardware replication