Seat/Seatpost
06-27-13, 07:10 PM
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Seat/Seatpost
I don't know much of anything about bikes and am just trying to start riding so please be patient with me. I got a cheap mountain bike and wanted to change the seat so I bought a nice seat. I was able to get the old one off, but can't for the life of me get the new one on. It fits, but slides right off the top. I tried to put the old seat back on thinking maybe it is not compatible, but now it is doing the exact same thing. I am doing something wrong, but cannot figure it out! Please help! This is a picture of all the pieces! 
06-27-13, 08:30 PM
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Here's a few photos of assemble saddle clamps of your type. Here's a description of how it goes together.
1- put the bolt through the center of the U-shaped central part.
2- slide on both rail supports with the radial knurls meeting those on the central part.
3- massage partly assembled bracket onto the saddle rail, with the bolt outside (below) the rails.
4- slide on both outer cover plates, and the nuts (and washers if any) and you're done.
5- slide assembled saddle and clamp onto post, install on bike, loosen nuts tilt saddle to right angle and tighten.
Go ride
1- put the bolt through the center of the U-shaped central part.
2- slide on both rail supports with the radial knurls meeting those on the central part.
3- massage partly assembled bracket onto the saddle rail, with the bolt outside (below) the rails.
4- slide on both outer cover plates, and the nuts (and washers if any) and you're done.
5- slide assembled saddle and clamp onto post, install on bike, loosen nuts tilt saddle to right angle and tighten.
Go ride
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Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
06-27-13, 10:17 PM
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Here's a few photos of assemble saddle clamps of your type. Here's a description of how it goes together.
1- put the bolt through the center of the U-shaped central part.
2- slide on both rail supports with the radial knurls meeting those on the central part.
3- massage partly assembled bracket onto the saddle rail, with the bolt outside (below) the rails.
4- slide on both outer cover plates, and the nuts (and washers if any) and you're done.
5- slide assembled saddle and clamp onto post, install on bike, loosen nuts tilt saddle to right angle and tighten.
Go ride
1- put the bolt through the center of the U-shaped central part.
2- slide on both rail supports with the radial knurls meeting those on the central part.
3- massage partly assembled bracket onto the saddle rail, with the bolt outside (below) the rails.
4- slide on both outer cover plates, and the nuts (and washers if any) and you're done.
5- slide assembled saddle and clamp onto post, install on bike, loosen nuts tilt saddle to right angle and tighten.
Go ride
Thanks so much for the reply! I finally have it set up correctly and it's working great now!
06-28-13, 06:05 AM
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Hi,
The image shows the way they are normally fitted,
but I like fitting them with the rails at the bottom.
rgds, sreten.
The image shows the way they are normally fitted,
but I like fitting them with the rails at the bottom.
rgds, sreten.
06-28-13, 07:27 AM
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If he clamp is well made of quality steel that's not a problem. However many are poorly formed and the material not heat treated. The cover plates and seat rail guides bend easily and under load the seat can sometimes pull through if the clamp rails down. Mounting the clamp with the bolt below is a stronger arrangement, and the bolt itself acts as a safety.
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
06-28-13, 07:06 PM
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If he clamp is well made of quality steel that's not a problem. However many are poorly formed and the material not heat treated. The cover plates and seat rail guides bend easily and under load the seat can sometimes pull through if the clamp rails down. Mounting the clamp with the bolt below is a stronger arrangement, and the bolt itself acts as a safety.
I understand what you are saying but it is not a issue at all on the clamp
I've inverted and find it hard to imagine one where it actually would be.
(The normal way up the seat would never stay tight either).
rgds, sreten.
Last edited by sreten; 06-28-13 at 07:42 PM.
06-28-13, 07:54 PM
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Over the years, I've seen a number of clamp failures that had folks sitting on the posts. As I said, well made clamps are fine inverted, but lower quality ones absolutely depend on being used right side up (saddle above the bolt).
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
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