I have a frame made out of 4130 , a design flaw My made up one, had me using the services of a shop that welded together Air distribution Duct work in Stainless steel
Tig welding , stainless filler wire.. gave thanks & a 20 Punt note 97, before the
€ was used there..
In
Killarney Kerry, Eire,
It all worked fine after that.. for the rest of the tour.. still have the bike.
....