https://washingtondc.craigslist.org/n...534178245.html

What type of frame is this? Like to make a vintage cruiser/city bike.

Probably reynolds 531 non-butted tubing: not spectacularly light but durable. Sounds great for your purpose, esp. if you want a mixte frame.

Edit: 20-30 Hi-tensile tubing; less desirable than I thought, but still a good price for a "working" bike.

one just sold on escam for around 230.00 plus 45 shipping several days ago..it was mint condtion with original light and tool bag

sorry i threw away the link

I doubt that's 531 tubing. I'd think it's 20-30 (being a Record), and rather on the heavy side. Worth the asking price if you're getting it for yourself, but getting it to re-sell probably wouldn't be worth your time.

What is 20-30? I'm guessing heavier steel?

What light weight (I use this term lightly) mixte frames are there?

There's a double-butted mixte frame padlocked on the street typically where I work. I believe it's a Nishiki. If you follow the eBay/CraigsList sticky thread here, you'll see a fair number of mixtes; they have a devoted following among the C&V aficionado/as.

"Gaspipe" is the derisive term used in the vintage bike circles for un-butted carbon steel.
Butted, or double-butted = lighter, the lingua franca of C&V lightweight lovers; either chromium-molybdenum (cro-moly) or chromium-manganese alloy.

I've had a couple of Miyata 100 mixtes that are made of Miyata's own triple butted tubing. I think I remember seeing a Mixte Schwinn Paramount on Ebay at one point as well.

20-30 is a bit better than gaspiple, Raleigh had a reputation to maintain.

Gaspipe = low end Murry's and Huffy's..ect

I've also seen some CTB Univega mixtes (probably also made by Miyata) and a couple of butted mixte frames with Nishiki branding.

To the OP: In case you were asking about the frame configuration, rather than the material, that's a mixte frame, identified by the continuous tube connecting the headtube and rear dropouts. They're often confused with "ladies'" bikes, but they're a much sturdier design. And more likely to be ridden as practical city transport by men with confidence in their masculinity. The step-through makes them notably more convenient for those who ride in non-stretch clothing.

I've seen step through Paramounts, but never a true mixte with three pairs of stays.

Motobecane and Austo-Daimler made Reynolds 531 mixtes. The Raleigh Super Course I used to have was plain guage 531. There seem to be a lot of nice Japanese mixtes out there. My wife has a Fuji that she loves.

I've been told that some Peugeot PX10 mixtes were built, but I'll believe it when I see one.

I have a Murray frame that weighs less than a Motobecane Mirage frame and a Raleigh Record that I have. Brand doesn't always equate to weight or quality. BTW; all of these frames are gaspipe.

And Raleigh did make at least one chromoly mixte... the Marathon. I know, I am building one up for a friend.

Well you are braver than I am, I walk right past every Murry that I see, Pretty happy to stick to my Raleighs and Motos.

I think the best indicator of crap, is not the tube decal, but how the rear dropouts are attached, Murry*/Huffy* = Crimped dropouts The closest bike tube to real black iron gaspipe is the stuf they made EF Schwinns from.

* I make sure, though I'll never find one that they are real Murry's I walk past and not rebadged serottas.