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bike seat shaft in bike frame problem

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bike seat shaft in bike frame problem

Old 06-30-08, 11:03 AM
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bbikke
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bike seat shaft in bike frame problem

Hi,
Equipment: Giant brand mountain bike with Satori seat shaft, quick release ring.
Have feeling problem related to metric and inch measurement manufacturing.

Had prior seat and the seat shaft spins a little inside bike frame assembly. Release ring at tightest position. Yesterday, seat, ring, and shaft got stolen. Surprise person took time to cut lock and steal old seat with tear.

With new seat shaft, wrap electrical tape around and insert into bike frame tube. Now, tighten quick release ring to max and close release ring. Seat shaft snug and believe shaft would not spin around bike frame. Riding later, discover some play possible and thus seat shaft can move a little around bike frame.

What solution to this problem? Another seat shaft. Is there some sort of accesory to make the seat shaft not spin in bike frame tube/shaft. If another seat shaft, what size to avoid this pitfall. Not knowledgeable enough on what is out there. Tx for reading and solution to problem.
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Old 06-30-08, 11:13 AM
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bikeman715
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what size is your seat post ? you might need the next size up . or you may go to your LBS and they may come up with a shim to put into your frame where the seat post goes.
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Old 06-30-08, 11:16 AM
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Sekine
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Just go to your LBS (Local Bike Shop) and ask them for a new seat post that matches the diameter of your current seat tube, electrical tape makes a bad shim because it compresses.
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Old 07-01-08, 03:31 AM
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DannoXYZ 
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Seatposts come in a variety of sizes, from as small as 22.0mm up to 34mm+ in 0.2mm increments (by 0.1mm on some of the higher-end models). You simply cannot get any old post and shim it with tape and expect it to hold. You MUST measure the ID of the seat-tube on the frame (assuming you haven't pinched it down too much by using an undersized post), and get a post with an OD sized to match.
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Old 07-07-08, 09:30 AM
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bbikke
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bikxeman715, Sekine, Dannoxyz,
Tx to all for your reply. After posting, phone reuse bike shop and mention I might get one for 10, arrive around 440pm and close. It was a holiday.

Securing my quick releases with clamp rings, I met old man and had informative conversation about rims. The best are radial and triple cross spoke rims. He give me quick pointers on how to arrange spoke to straighten rim. Max quarter turn on left sides, then 1/8 turn on right sides. Do a side and u might go 2 or 3, then do other side. Will try one day for I did in past with no success.

He also mention how to adjust gears. Set high front and low back, then low front and high back. The chain should be directly under. These are 2 mystery and today I have more knowledge. Decide to post for others to critique my intel.

Tx to all for your support. Happy biking. Cutting chain measured to secure my seat. Cable easy to cut if u want to protect your seat. Will wrap chain 2 or 3 times around seat and bike - one lock around circular loops. Chain will damage bolt cutter edges in order to earn my seat. Bike now engrave and my friend think I went overboard when I silicon hex screw heads that came with bike handle.
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