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.
453014
maybe because the seat post will not fully retract? look at the frame style. at its lowest point my saddle is several inches above the frame. might put normal sizing out.....I bought mine from a shop so tested it in person
1360913
The rack comes with several plastic shims so it should fit most about any size seat post. But in my case, I chose to use layers of bicycle tire inner tubes instead of the provided shims. Force of habit, plus I had a bad experience with plastic shims when I installed this same rack on a Dahon folding bike. No scientific instruments required in installation. :-D
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.
1618972
it is bigger than 2 inches , should fit yours fine . I have a schwinn beach cruiser and the posts are a good inch and half
470925
I've never bought a saddle that wouldn't fit a seat post but I'm not sure about this one and your specific post. Your bike shop should be able to tell you or contact the manufacturer. Sorry I'm not much help!
932417
I don't know exactly. but the bracket on this saddle is attaching to the seatpost of mine at 0.87". and the seatpost itself (wider part of it) is 1.2"
665021
I ordered the elongated seat, my original seat measures 17 1/2 from front to back. Sounds like you have a standard toilet seat, if you order the standard I think you'd be fine. I think the measurements are a bit off in the ad. The mounting piece is about 3 inches wide and even counting that, my seat only measures 19 from mounting piece to the front. Hope this helps....I love it!!!
1133177
Unfortunately it didn't fit correctly on my seat post so I had to return it, so I don't really know....sorry about that.
1018149
Not sure... I'd look at the measurement etched into the bottom of you current seat post and make sure to order the same diameter... Or look up the specs on specialized website or have your LBS measure for you...
744086
It's best to measure your bike's post to be sure of the correct size. "Standard" could be a very relative term in the bike world. You can find a inches to mm conversion calculator on Google to make the conversion easier, if that helps.
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
683226
I had a look at the pictures of the seat, but I am not really sure. Do you have an email address where I can send my email address to? Then you maybe can send me a picture of the connection on your seat and it would be easier for me to see if it would fit. Thanks!
1789768
I took a tape measure out and measured my seats ...the seat is 20 1/2 inches long by 6 inches thick by 22 inches across.The back is 22 inches high by 22 inches across and 5 inches thick..........THE back fits snug on my seats and the seat part is a little loose my seat could have been a few more inches long where its 20 1/2" it could have been 22"and it would not have hurt at all.My ADVISE ....get a tape measure out and give your seat a quick measure if your in these specs at all your good to go .
1683815
I purchased the 25.4 MM ( 1 inch) diameter seatpost for an older 1970s model Raleigh bike. The diamondback probably uses the larger seatpost. However, I would measure to make sure.
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.
70679
Getting the exact measurements can be tricky. but a bit easier for taller inseams. I am 5'0'' ft and I can make it work with a 50 cm and that's pushing it. I looked at a bike tool for you and I would definitely go with the 54cm, because the bike seat can always be adjusted for a few inches. But if you feel its too small and you want something that might be really close to being to tall or uncomfortable go for the 58cm. Just remember comfort is a big deal when riding for miles. Hope it helps good luck.