Adjusting seat fore/aft tilt on non-adjustable seat post?
 

Is anyone aware of any sort of gadget/device that can be added to allow fore/aft tilt of a seat to be adjusted on a seatpost that doesn't offer it?

I have a Cannondale Quick Carbon which has an aero shaped post that does not offer tilt adjustment. I just purchased a Selle An-Anatomic saddle - which was very comfortable on it's maiden voyage except that the nose it tilted up to much.

In looking at the manual for your bike, it appears that the clamp at the top of the seatpost is an "all in one" model that should allow the angle of the saddle to be changed when the clamping bolt is loosened...

Unfortunately it is not that simple. Supposedly you have to BANG off the parts with a mallet to adjust them. Nothing really simple or easy to do while out riding. This is why I was hoping a gadget or custom piece might exist.

I think you need to look at the assembly again. The manual that sstorkel linked to shows a simple binder bolt and says nothing about hammering on parts.

Trust me. I have changed seats a couple times since I purchased the bike. All the binder bolt does it clamp on the seat to the seatpost. There is NO rotation available when the binder bolt is removed. There are other threads about this "poor" seatpost design but no solution on how to get around it.

It appears to me that by loosening the saddle clamp bolt that is pictured on pg 5 of the manual mentioned by sstorkel you can achieve both fore/aft and tilt. I can't imagine a bike company making a seat post assembly that won't allow fore/aft and rotation adjustments.

Take a picture of the top of the seat post for us.

There is even this warning that mentions the saddle can move.

"Incorrect alignment of the saddle clamp parts can result
in the saddle moving unexpectedly while riding. When
adjusting the saddle angle, make sure the saddle rails
on both sides of the saddle are aligned with the inner
and outer clamp on both sides of the saddle. Ask your
Cannondale Dealer for assistance."

Take it back to the shop and have them show you how to do it.

You are definitely doing something wrong. The manual would not post this if it wasn't possible. I also have the exact same set up on my wife's bike. I have made a few roadside adjustments with an allen wrench while adjusting the fit.

If I remember corectly, only one side need be loosened to make the tilt adjustment. I don't remember if it was the right or left (I'd bet the right side). I'd mess with it but not wiling to mess up her angle and fit after getting it just right.:D.

http://farm8.staticflickr.com/7092/7...54f0917d53.jpg
saddleangle by mrbeanz1, on Flickr



I have made quick one minute adjustments on the road with an allen wrnech, Again, you are doing something wrong. ;)

I took the seat completely off my bike today and the two metal pieces on the sides of the seatpost DO NOT MOVE. I tried turning them with everything I could that would not damage them - even tried to pop them off with a wooden dowel and a rubber mallet and they are not budging. This is exactly the same problem I saw others complaining about when I googled this issue.

http://forums.teamestrogen.com/showthread.php?t=39017

I will take it to the bike shop at some point but I was really hoping to have a way to make minor adjustments myself as the new saddle I am trying (Selle AnAtomica) really needs to be tilted down a little.

I wonder if it's simply seized up from galvanic action or corrosion of some sort. Maybe once "persuaded" to come apart it should have a light coating of grease or something before mating the parts back together again. Just a thought.

I'll be really interested in hearing the LBS's take on it.

This is from the bontrager site......Did you try aapplying pressure directly above seat clamp. According to the diagram, there are compression wedges present.

http://media.bontrager.com/owners_ma...r_Seatpost.pdf

To adjust the saddle tilt
1. Loosen the saddle clamp bolt several turns.
2. While tilting the saddle, apply pressure to the top of the
saddle directly above the saddle clamp.
Pressure on the saddle helps release the compression wedges.
3. Tilt the saddle to the desired angle.
4. Follow the Inspection

This was my first thought as well. Given the unique design of the clamp, I could easily see a mechanic forgetting to grease the required parts. Probably not a bad idea to call the shop or the manufacturer and ask about the problem. If it's something that comes up frequently, they might have advice on fixing it...