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Need locate a part for Kestrel 4000 seat clamp part

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Need locate a part for Kestrel 4000 seat clamp part

Old 02-23-21, 07:21 PM
  #1  
JMH714
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Need locate a part for Kestrel 4000 seat clamp part

My next door decided to take apart almost all components for his newer bike frame and gave me the Kestrel 4000 aero road bike. I thought I'd use it for stationary bike since I already have Specialized Roubaix for my outside biking. I was able to get all parts except for seat clamp that I don't seems to be able to locate where I can buy it - uncertain which one. I'm seeking your assistance for this.

Pictures:



Thank you in advance for any help.
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Old 02-23-21, 08:55 PM
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Hard to see something that isn't there This is a fairly unique post and top clamp although the basic design is used by many. No surprise that you can't find a replacement on a bike made by a tiny manufacturer (who was bought and sold and their manufacturing "plants" changed over the years) many years ago.

What I would do if I really wanted this bike to be useable is to make the parts. Easier to start the drawings if you can find an image showing them. The clamp likely consists of two basic parts. Both are near halves of a tube. The tube is split down it's length. Notches for the seat rails are filed/cut into the split faces. A through hole allowing a bolt to compress the two halves together , with the rails between, and some sort of shaped nut under the part on top of the post that you still have. Andy
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Old 02-23-21, 10:03 PM
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Umm... Is it similar something like this:

https://www.amaincycling.com/giant-c...000048/p440696
or
https://www.amaincycling.com/special...waAsqmEALw_wcB
or
https://www.fanatikbike.com/products...EaAsObEALw_wcB

I don't know how old it is and I tried to google for Kestrel 4000 LTD images to get a close up. There is one and it seems that it look like this: https://www.bikeinn.com/bike/ritchey...B&gclsrc=aw.ds

This is my first TT Aero bike and I really have no clue!
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Old 02-23-21, 10:45 PM
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The kind of bike has no bearing on the missing parts. The first 3 images you link to are from posts that have a complete and round surround for the linked parts to nestle into (much like the awful to adjust Bontrager posts of a few years ago). Andy
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Old 02-24-21, 08:35 AM
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Originally Posted by Andrew R Stewart View Post
The kind of bike has no bearing on the missing parts.
It sort of does. That's an "aero" seatpost and the remaining lower saddle clamp is adjustable for setback making it unique to that bike. Unless the OP can find the OEM missing parts, your suggestion to have the parts custom fabricated is his only choice.
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Old 02-24-21, 08:58 AM
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You might want to check this review of your Kestrel as it mentions saddle clamp problems and has a video that, sort of, shows the clamp itself. Scroll down to "Saddle Clamp Issues" about a third of the way down and the video is right below it. May be worth it to find a work around if the better parts recommended in the video can't be found. Kestrel 4000 Review - Seattle Triathlon Coach (tritheos.com) Also the Kestrel website has an archives section that lists seatclamp as being a "Ritchey clamp system" for some of the models. Kestrel Bicycles | 2016 4000 Shimano Ultegra | Bike Archives

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Old 02-24-21, 02:07 PM
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I don't know about all models, but some used the Ritchey One Bolt clamp system and that looks like the Ritchey clamp will fit. https://us.ritcheylogic.com/us_en/wc...plete-clampset
Video of the One Bolt clamp system here
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Old 02-24-21, 06:43 PM
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I would talk to these guys to see if it fits a Kestrel 4000; either the tilt portion or the whole thing on a Kestrel rail.

https://mybikeshop.com/products/cerv...yABEgK4H_D_BwE

John

Edit Added: Also search for Ritchey TK Topper.

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Old 02-24-21, 07:19 PM
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Thank you, guys, for being helpful.

Ordered one and hopefully it worked out.

Again, thank you!
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Old 02-27-21, 03:22 PM
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Updated:

I received a Ritchey part almost similar with above and it fits perfectly. I haven't put saddle on it yet - but the clamp slide in bottom perfectly.

I couldn't even find it without any of you point me right direction.
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