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There were two of these on eBay? They were very interesting I did wonder if they were speedway frames
spotter-
There were actually three, @coventry_eagle bought two and then another came up. Ye someone else did suggest that. All the other cycle speedway frame I've seen have very small headtubes though and idk but it doesn't seem like something that would be outsourced to China considering the small demand? Maybe I'm wrong.
oheyitsd
So I bought this random frame from Deeside cycles which is associated with Graham weigh and it had Graham weigh stickers on it but it’s definitely not hand made by him. It had a made in China sticker on it and the welds are not exactly perfect. But it does seem to be butted from the nail pinging on the tubes test.
Anyway after trying some wheels and tyres on it seems rather like it would work well with or was designed for 650b. That’s a 43mm tyre at the front. Won’t quite go all the way into the fork dropouts. And at the back it’s a 42mm tyre with the axle almost right at the back.
I’ve been looking for a steel canti frame with big clearances to build into a 1x gravel/off-road thing but can’t find anything at the moment. So I was thinking, since I had the frame, I could get rear derailleur, canti posts, cable guides etc brazed on and build it with 650b wheels.
Any reason not to use a fork with such a low offset off-road? The wheelbase is about 1030mm so it’s not super short.