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Help with parts arrangement for Camp two bolt post

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Help with parts arrangement for Camp two bolt post

Old 05-14-16, 01:51 PM
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lotekmod 
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Help with parts arrangement for Camp two bolt post

I have this Campy two bolt post, I think it's a Gran Sport but it's similar to other models. I took it apart to try to clean it up a bit and realized the parts aren't all symmetrical.



So the upper clamp bars have different width notches and the lower saddle cradles (excuse my nomenclature) have a widened end. Both of these parts can be oriented toward the front or rear of the seatpost and my search of the internets have shown seatposts with nearly every combination possible.

So anyone want to step up and declare the definitive answer on the orientation of these parts?

Thanks!
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Old 05-14-16, 02:20 PM
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This illustration may help you a bit.

On the upper clamp parts the wider one is the rear and the narrower one the front.

On the lower clamp parts the wide opening goes to the front.

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Old 05-14-16, 02:27 PM
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Thanks for posting the illustration, that helps, but in the left photo it looks to me like both wide parts are in the front.

Edit: and the parts diagram has the wider one called out as anterior and the narrow one as posterior, so that's that! Thanks!
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Old 05-14-16, 02:36 PM
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i've had several of these and never noticed the cradle openings are any wider than the others.

i've never worried about it and never had one loosen or slip on a ride.

a tip i'll share is to use a wrench only on the rear bolt. hand tighten the front. adjust saddle tilt like you would adjust the cone of a hub.
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Old 05-14-16, 02:50 PM
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I'll second @eschlwc about finger tightening the front and then wrenching the back. I doubt one could get a normal wrench on the front bolt anyway.

It looks like the illustration shows ways to orient for different rails. Can you line up the top pieces on your saddle to figure out which way ill seat best?
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Old 05-14-16, 02:57 PM
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in the illustration the lower parts are identified as "sinistro" and as "destro." sinistro if left and destro is right.
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Old 05-14-16, 03:00 PM
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It looks like there are two versions of the seatpost, one for short railed seats (the one with widened notches) and one for long railed saddles (the one with small notches). My guess is the one with widened notches at the front is made that way to allow the saddle to be slid back farther, where the rails would begin to turn in. It all makes sense to me now.
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Old 05-14-16, 03:13 PM
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The wider spaced top clamp goes in the front position. The cutaways in the lower section face forward as well.
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Old 05-14-16, 03:43 PM
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Originally Posted by lotekmod View Post
It looks like there are two versions of the seatpost, one for short railed seats (the one with widened notches) and one for long railed saddles (the one with small notches). My guess is the one with widened notches at the front is made that way to allow the saddle to be slid back farther, where the rails would begin to turn in. It all makes sense to me now.
if you look at the two drawings at the bottom you will see that the two pillars illustrated are made for saddles of differing rail widths.

the pillar shown on the right of the page is made for use with saddles which have a "narrow" as opposed to "standard" width frame.
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Old 05-14-16, 04:14 PM
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I just assumed the wider edges were for the rear to allow the seat to be pushed as far back as possible where the rails taper out slightly
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Old 05-14-16, 04:18 PM
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Nothing like Italian Design ....I just spent a lot of time this morning figuring this out for myself....where was this thread when I needed it?
Regards, Ben
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Old 05-14-16, 05:55 PM
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I've never had a particular problem getting a wrench on the front bolt. I suppose it depends on the wrench and the saddle. I particularly like the ability to make those small "micro" adjustments. If the saddle is close, but not perfect, you just loosen one a little and tighten the other by a similar amount.

That said, the best wrench for the job, bar none, is a ratcheting flex head wrench, like this:

GearWrench 9910 10mm Flex-Head Combination Ratcheting Wrench - - Amazon.com
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Old 05-15-16, 12:47 PM
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Originally Posted by smontanaro View Post
I've never had a particular problem getting a wrench on the front bolt. I suppose it depends on the wrench and the saddle. I particularly like the ability to make those small "micro" adjustments. If the saddle is close, but not perfect, you just loosen one a little and tighten the other by a similar amount.

That said, the best wrench for the job, bar none, is a ratcheting flex head wrench, like this:

GearWrench 9910 10mm Flex-Head Combination Ratcheting Wrench - - Amazon.com
+1

And having twelve points instead of the six of the Campag and similar tools is a big plus.
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