I can find many places that sell the front stainless brake lines but not the rear. I got fronts from Pashnit.
Im looking for blue lines with red fittings. Who sells the rears?
speedlines has many colors. Find the length you need and any atv shop shop be able to get them. You may have to use your old banjo bolt though cause most quads use a different thread pitch.
i used the 250 rear brake line but with the 500 banjo.