Noob Needs Help with Saddle Post Clamp Ordering

[ro8ter]

The bottom part of the clamp that secures my saddle broke. I have some pictures:



You can see how the bottom clamp is broke and bent. I think someone was trying to steal the seat. Where can I order this part online?

and here is the bike, trek 730



The saddle is from a Canadia firm called spider, it's noseless. Thanks in advance.

I been riding this bike to work every day for like 10 years now.

[GeorgeET]

You need to determine the diameter of your saddle post first. Than check with google or amazon. I doubt you can find repair parts, buy you can get a new post for $15 or so. Check with your local bike dealer.

[ro8ter]

Looks like 1 inch in diameter.

[GeorgeET]

There are lots of seats close to one inch from 25.4 mm (1") to 27.2mm. Seat post needs to be measured very carefully.


http://www.walmart.com/ip/13012241?wmlspartner=wlpa&selectedSellerId=3&adid=22222222227000000000&wl0=&wl1=g&wl2=c&wl3=21486607510&wl4=&wl5=pla&wl6=19880599990&veh=sem

[ro8ter]

Looks like it's 26.6 millimeters. I never would've thought there could be a difference of 1mm.

my bike on bikepedia

[GeorgeET]

(09-26-2013, 04:42 PM)ro8ter Wrote:  Looks like it's 26.6 millimeters. I never would've thought there could be a difference of 1mm.

my bike on bikepedia

^^^^^^^^^^^^^^^^^^

That helps ye the differences can be very small. Look around maybe you can just swap parts from a used one.Take it to a local dealer. Not everything is solved with a computer.

http://www.amazon.com/Sunlite-Alloy-350mm-Seat-Post/dp/B000AOZ1L4

[painkiller]

I would check the stamping on the post you have, it should tell you. Look closer. Some of those Treks came with a post shim from the factory. If your post was swapped at some point in time and you ordered the 26.6 and it had a shim from the factory it will not fit right. Check twice buy once

[Joe_W]

Yup. Seat posts are sold in .2mm increments. If you are off by a size it will not fit - either only brute force will make it go down or you need to almost brake the clamp to fix it - and then it will still slip at the most inconvenient point in time. The LBS has a tool to measure the inner diameter of the seat tube. When in doubt: let them measure but then also order from them (this will not really be more expensive than shopping online)