Reynolds tubing - questions

Posted on Thu 12th, November 2015

• #1

t.o.

I am trying to work out the appropriate diameter for a p-clip for a 1950s reynolds 531 chainstay. I don't have the frame and want to buy the p clip to have everything ready by the weekend.

Anyone know what size / have a chart showing tubing diameters and other measurements for different tubesets?

Thank you
• #2

Skülly

not 50s but the 'Club Sport' set was probably almost identical in the 70s. /not an expert
• #3

t.o.

Thanks Skully, v helpful as ever!
• #4

Skülly

aw shucks
• #5

ColnagoDaft
Chainstays varied a fair bit in the 50's. A lot of frame builders used 'pencil' stays which could narrow down to 9mm at the drop out end. Clips are not expensive, but I'd wait to see the frame myself.
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• #6

ColnagoDaft

Like dis:

http://lovelybike.blogspot.co.uk/2013/06/speed-lugs-and-jewel-tones-jrj-grass.html?m=1
• #7

t.o.

^v nice.

I measured the frame, skully was right.

Now the seatpost, it's 26.0 in one direction (12 o clock - 6 o'clock axis) and 27.0 in the other (3 - 9 o'clock)!

Bent at the clamp obviously.
• #8

ColnagoDaft

As long as you can get it out okay...

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