The inside diameter of my seat post hole measures 28 mm. The closest sizes I see on this product are 27.2 and 29.2. Should I go larger or smaller?
447060
In my opinion you need to make sure you get the exact size you need, I don't know what you used to measure but you should try to look up your bike on a sight such as bike-pedia that will give you the exact sizes and stats. for your bike. That being said 27.2 is one of if not the most used seat post sizes along with 25.4 so that might be what you need, but seat post sizes are in increments of 2mm and if you do not buy the correct size it is more trouble than taking the time to get it exact.
447061
Don't guess what size you need. Worst case, you could destroy your frame by trying to insert a post that is 1 mm too large. Take out the old post (hopefully you have it.) Most seatpost shave the size stamped on them. If the numbers are hard to read, try shining a flashlight on from the side. If your post is not marked for size, use a vernier caliper to measure the size of the post, not the interior of the frame seat tube. This is an inexpensive tool that is helpful for many bicycle applications. I have one in my bike tool box.
447062
27.2. There is expected to be a slight amount of play so that the post can slide in and out, but one mm too large will never fit. Note: this post doesn't have a seatpost collar, you have to buy that separately.
352184
As far as I know it's designed to fit a bike frame with a 300mm hole for the seat post to fit into, so the seat post must be 300mm. The other end fit into the seat bracket that is adjustable...the bike frame socket is not.
69708
The inside dimension for the post is 1.25 x 1.25in and the outer diameter of the flange is 3-1/8 x 3-1/8. Hope this answers your question.
234738
I checked the diameter of both the units I bought and it looks as if 1" is the max diameter of the post clamp.This would not fit my seat post but the rear frame wheel support.Hope this helps... Please note that the most recent one purchased only had the large size clamp and came with two dead batteries. Perhaps this was a customer return.
1288471
measure the width of the slot that your saddle fits in (or measure the saddle) buy the pick up that is close to your measurement. you may have to adjust the slot
1347266
That's a mighty wide seat post. Most are thinner. Remove nut from the tightening screw. Must remove seat post from the frame and slip it up from the bottom. May need to remove the rubber washer/spacer. Apply nut back into the nut-sized depression. Tighten. You may have a very nice bike...and heavy-duty also with a frame that big. Good luck. I specialize in old Schwinns and Raleighs. Have fun!
1235275
I'm pretty sure that most seat posts are a standard size especially if you have a beach cruiser. I just took my old one off and put this one on my old beat up beach cruiser.
1137355
The clamp is made out of plastic as the others have said. There are liners in the jaws to protect the paint. They also have indicated that it will fit the seat post. I con't know about that one. It will most likely fit the seat tube that the seat post goes into. The seatpost itself? It will fit some for sure. A 27.2mm? I not as sure. I'd have to measure it to be sure. I've used it with the seat tube and it worked very well.
587546
The 20" would be a good size to start out on. The seat post is really long, so if it's too tall, you can always cut the seat post.
1459394
I clamped it to a 26.8 Schwinn Suburban seatpost. With its shape though, I think it's a little variable based on how much you screw it.
2280728
I'm not sure about the size of your seat but the 14 by 14 size is down the middle and the wide part near the back. Mine is a little small for my seat but works great
1583930
I measured it and it should fit. You put the lip at the rear under the bowl first, and that helps hold it in place. The lip is intended to fit UNDER the seat. I don't know if you can return it, but I imagine that you could. Ask Amazon about that one. As for the hole being small, it is smaller than a normal toilet seat, but I didn't have any problem using it and I am obese. I don't need it anymore, I had it for when I had some surgery.
930551
Pull out your old seatpost and look at the lower portion of it, the size in "MM"...about 2 to 3 inches from the bottom usually. Unfortunately there are so many sizes of seatpost.
1878639
It should fit. Just order the 31.6 mm. Should work with the saddle.It is very nice by the way.
665020
This type of seat is for an Elongate fixture not the standard, which is what your measurements lead me to believe you have. Try looking for a standard size seat.
1683813
Our BMX uses 25.4mm , Mongoose and Target Brand bike. The old seatpost that it replaced has a stamp on the bottom of it 25.4mm. Goodluck.
753204
the bike should have a quick release clamp,if not and you need to interchange seats and/or post then you will need to find or buy one. On our bike we use two different seats each with its own post and with this post i had to have a shim, which amazon sells. Note: All bikes and/or posts do not use a common post hole diameter.