So this was from a later model (post 1971) Rocket 3.
From the dark red colour, almost certainly from a (rare) '72 US-market bike. Jon's pictures are of '71 US-market bikes (BSA called the '71 colour 'Firecracker Red'); '69/'70, BSA supplied the larger 'bread bin' tank to all markets; '71/'72, they used it only in other markets.
Originally Posted By: Paula C. Buls
I am hoping to sell it in the near future to help finance the Lighting's refurbishment.
Paula, you need to eBay that tank. The last one I had was bashed severely in back at the center rear seam. It went to Australia for quite a few hundred dollars. These are hard to come by tanks with people looking for them. Good luck with your sale.
I really don't have a clue what the tank is worth. There is some indication it could be rather scarce. Since I could really use the extra money to put into the Lightning's refurbishment, my inclination is to put it on eBay and let the market forces determine what it's worth. I'll be sure to put notices on here when I post it. I'm going to be out of town over the weekend so it'll probably be next week before I get it posted.
1969 BSA Lightning "Penelope" 1978 BMW R80/7 "Freyja"
Hi Paula. Good idea to put it on eBay, it certainly is a 1972 Mk2 R3 tank. These are getting very rare so the result will be interesting. I have just refurbished 3 Mk2 R3 tanks and the cost to do this is getting a bit horrific now. For example your tank looks like it will need panelling which will require it having the chrome removed and the bottom being cut away to allow access to panel beat it. As the steel on those tanks is so thick that was the only way I could get mine done properly. Once panelled and reinstated it will need to be rechromed and then of course repainted.This process cost me US$1,500 (in NZ) to have done and that is without the donour tank! In my book that makes a pristine one worth circa $2,000!!!! Sid.