Seat post
09-30-24 | 10:32 AM
#2
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From: PDX
Bikes: Merz x 5 + Specialized Merz Allez x 2, Strawberry/Newlands/DiNucci/Ti x3, Gordon, Fuso/Moulton x2, Bornstein, Paisley,1958-74 Paramounts x3, 3rensho, 74 Moto TC, 73-78 Raleigh Pro's x5, Marinoni x2, 1960 Cinelli SC, 1980 Bianchi SC, PX-10 X 2
10-01-24 | 08:14 AM
#3
Bikes are okay, I guess.
Joined: Jan 2015
Posts: 8,006
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From: Richmond, Virginia
Bikes: Waterford Paramount Touring, Raleigh Sports 3-speeds in M23 & L23, Schwinn Cimarron oddball build, Marin Palisades Trail dropbar conversion, Nishiki Cresta GT, Jeunet mixte
We must know more about this project. Does it involve an Ideale 90 saddle with the flat alloy rails?
10-01-24 | 01:13 PM
#4
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From: PDX
Bikes: Merz x 5 + Specialized Merz Allez x 2, Strawberry/Newlands/DiNucci/Ti x3, Gordon, Fuso/Moulton x2, Bornstein, Paisley,1958-74 Paramounts x3, 3rensho, 74 Moto TC, 73-78 Raleigh Pro's x5, Marinoni x2, 1960 Cinelli SC, 1980 Bianchi SC, PX-10 X 2
10-02-24 | 12:07 PM
#6
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From: NW Oregon
Bikes: 1982 Trek 930R Custom, '91 Diamondback Ascent w/ XT, XTR updates, Fuji Team Pro CF road flyer, Specialized Sirrus Gravel Convert, '09 Comencal Meta 5.5 XC, '02 Marin MBX500, '84 Gitane Criterium bike
Quill seat posts were a bad idea in the first place,,,
when combined with an ALUMINUM Frame, the bad idea becomes even More Destructive.
31.8mm seat posts are for Aluminum frames, and top clamping.
when combined with an ALUMINUM Frame, the bad idea becomes even More Destructive.
31.8mm seat posts are for Aluminum frames, and top clamping.
10-03-24 | 05:35 AM
#7
Thread Starter
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Joined: Aug 2024
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From: Terre Haute IN
Bikes: Schwinn Bob Jackson trek Phillips Viscount Surly Fairdale
Well some d bag installed a 31.6 in a nice Bianchi and it cracked at the clamp. The frame us already destroyed just want ride it as long as I can
10-03-24 | 05:21 PM
#8
Bikes are okay, I guess.
Joined: Jan 2015
Posts: 8,006
Likes: 3,777
From: Richmond, Virginia
Bikes: Waterford Paramount Touring, Raleigh Sports 3-speeds in M23 & L23, Schwinn Cimarron oddball build, Marin Palisades Trail dropbar conversion, Nishiki Cresta GT, Jeunet mixte
Need some clarification here. Is it the seatpost that cracked at the clamp portion near the top, or did the frame crack at the seat cluster? Pix would help, so hurry and get to ten posts so you can put pix on your own posts or add to your gallery and let someone know so they can post here for you.
10-03-24 | 07:32 PM
#10
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From: San Antonio, Texas
I can’t speak for aluminum frames but there is nothing inherently wrong with a quill seatpost in a vintage steel frame as long as you keep them maintained and lubricated, same as any quill stem. My 1990 Moser Leader ex-race bike was designed for one and does what it needs to without any issues at all.
10-03-24 | 07:39 PM
#11
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From: San Antonio, Texas
10-03-24 | 09:34 PM
#12
Senior Member
Joined: Oct 2015
Posts: 16,107
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From: PDX
Bikes: Merz x 5 + Specialized Merz Allez x 2, Strawberry/Newlands/DiNucci/Ti x3, Gordon, Fuso/Moulton x2, Bornstein, Paisley,1958-74 Paramounts x3, 3rensho, 74 Moto TC, 73-78 Raleigh Pro's x5, Marinoni x2, 1960 Cinelli SC, 1980 Bianchi SC, PX-10 X 2
I can’t speak for aluminum frames but there is nothing inherently wrong with a quill seatpost in a vintage steel frame as long as you keep them maintained and lubricated, same as any quill stem. My 1990 Moser Leader ex-race bike was designed for one and does what it needs to without any issues at all.
The Colnago I did awhile back had a wonky ST that took a bunch of hand work to get the panto SP to work well and on top of that it had a Sugino binder with a key that had been carving into the clamp ear. Both things being cardinal sins IMO on a Colnago especially.
