1971 Raleigh Supercourse--Seatpost Size?
02-21-22, 05:16 PM
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Buy a digital caliper ....( Harbor Freight )
Inexpensive ....easy to use ....accurate
Just remember to 'zero' it prior to taking a measurement
Inexpensive ....easy to use ....accurate
Just remember to 'zero' it prior to taking a measurement
02-22-22, 02:47 PM
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02-22-22, 02:56 PM
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I'd measure. Raleigh was famous for grabbing what was on hand when the spec item was out of stock. That the 10 people you surveyed all reported "X" diameter seatpost and tube for your year and model Raleigh does not mean that is what you have. (Raleigh also often made runs of a model for particular distributors with different equipment, etc.
02-22-22, 04:59 PM
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Just to be clear, you pulled out a scuffed 26.2mm post but the largest measurement reading is 26.1mm? Sounds like You’ve likely got a pinched seat tube, I’d look to hone or ream this.
Last edited by Pcampeau; 02-22-22 at 05:08 PM.
02-22-22, 07:58 PM
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My 71 seatpost is 26.2
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Last new bike 1991
Last new bike 1991
02-23-22, 09:43 PM
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The tool
Last edited by dschell; 02-23-22 at 09:54 PM.
02-23-22, 10:11 PM
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Interesting technique. 26.2mm ought to work much better than the aluminum can shim method that a previous owner tried. If you end up getting any slippage you can always get a proper seat tube reaming tool and get it 26.4mm, but what you did will probably work fine.
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02-23-22, 10:18 PM
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Look no shim!!
02-23-22, 10:20 PM
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My 71ish Raleigh Super Course
02-24-22, 12:27 PM
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My 21" 1973 Super Course has a 26.6 seat post, likely reamed to that size. 
They also nipped the points off the head tube's Capella lugs for Heron clearance.
They also nipped the points off the head tube's Capella lugs for Heron clearance.
Last edited by ollo_ollo; 02-24-22 at 12:29 PM. Reason: Move capital T
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02-24-22, 01:08 PM
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The Tiger was kitted with an under sized post. Visually, seatlug cut was pinched good, 25.8 was a no go. I wedged the lug open ever so gently with a plastic shim tapped in behind parallel to the seatube till the cut line opened. At that point I massaged a steel 26.2 post. If I was using an alloy post I would have run a rounded file over the spots inside the tube, that are sharp or high, that could scratch the alloy.
This was me trying the 26.2 before the wedge. I couldn't lip that in for nothing. Now it's set at an appropriate height for the size frame.
This was me trying the 26.2 before the wedge. I couldn't lip that in for nothing. Now it's set at an appropriate height for the size frame.
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02-24-22, 06:52 PM
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02-24-22, 07:00 PM
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Mr66, massage is the right word. I spent a while opening mine up, trying not to be to heavy handed. Also didn't let the gorilla tighten the binder bolt when done!
02-25-22, 07:42 AM
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Original 531 decal only had a few shreds left, just enough bits to I.D. Replaced with one from Cyclomondo, who I used for my Stella, several Motobecanes and others. Greg Softley is great to work with, although in Australia, quick to respond. All the other decals are in pretty good shape. Don
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