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  1. #26
    Clipless in Coeur d'Alene twocicle's Avatar
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    Quote Originally Posted by seth10015 View Post
    Ouch.....I meant no disrespect whatsoever. Calfee is surely perhaps the most modern tandem bike there is. I've only been in tandeming for 3 years, and am simply trying to learn about the Ergon CF3 seat post & why it won't work on my frame.
    I did call Specialized & told them about my issue, but they had no advise.
    Have a great day & I hope Craig doesn't send the Calfee police after me. I like Calfees
    No offense taken, hence the jibe about getting our tandem modified - again

    Luckily my stoker says she has no need for a shock/suspension post back there on the Calfees, and that is after using very stiff Thomson posts for a couple years now. We ended up with the carbon railed (FWIW) Terry Butterfly to offer her as much comfort as possible. We couldn't find any women's racing saddles that she liked.
    Last edited by twocicle; 06-27-14 at 10:29 AM.

  2. #27
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    Quote Originally Posted by seth10015 View Post
    The Ergon web site claims no sleeve can be used with this seat post. I called Ergon & that's there company policy, but couldn't tell me why. My Co-Motion is 29.6 I believe. Any thoughts to why this might be dangerous & not approved. We now use a Cobl Gobl & my 102 pound stoker claims it does not help with bumps at all.

    We've been using the Ergon off set seat post on our Macchiato for over 5 months now with a 27.2 shim. Seat post shows no scarring, chipping, are any other noticeable bad effects from using at all.
    image.jpg

  3. #28
    Tandem Vincitur Ritterview's Avatar
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    Quote Originally Posted by Bad1 View Post
    We've been using the Ergon off set seat post on our Macchiato for over 5 months now with a 27.2 shim. Seat post shows no scarring, chipping, are any other noticeable bad effects from using at all.
    image.jpg
    So jealous you got that early release setback seatpost. I Tweeted Ergon about this, and this is what was tweeted back:

    ErgonBike ‏@ErgonBike 23h
    @Ritterview The CF3 Setback and Flip-Head are not available in N. America at this time. We currently have no availability date.


    So, what does the stoker think of the Ergon CF3 setback? Does it smooth things out?

  4. #29
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    Quote Originally Posted by Ritterview View Post
    So jealous you got that early release setback seatpost. I Tweeted Ergon about this, and this is what was tweeted back:

    ErgonBike ‏@ErgonBike 23h
    @Ritterview The CF3 Setback and Flip-Head are not available in N. America at this time. We currently have no availability date.


    So, what does the stoker think of the Ergon CF3 setback? Does it smooth things out?
    Stroker feels that it has smoothed things out quite a bit, she complained that at higher cadences of 90 & more it got a little bouncy, so I improvised by using The clamp off one of the flashing rear lights you can purchase, and basically choking up on the seat post to stiffen it up a bit, after playing around finding the right position this seems to work quite well for her/ 132# stroker.
    Last edited by Bad1; 06-27-14 at 02:55 PM.

  5. #30
    Tandem Vincitur Ritterview's Avatar
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    We at last got the Ergon CF3 Pro Carbon SetBack, and took it for a ride today on a route where the road is in need of repaving.

    Mrs. R really liked it. It smoothed out the bumps, and gave her more confidence on the rough descent. Its been awhile since we trialed the Specialized CBL-GR, which she also liked, so we can't really compare. But likes the functional look of the Ergon CF3 are much better.



  6. #31
    Rod & Judy gracehowler's Avatar
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    Pretty hot looking!
    R

  7. #32
    Clipless in Coeur d'Alene twocicle's Avatar
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    Reviewing the seatpost manual, I still have a couple questions:

    1. What is the distance from the middle of the saddle rail (horizontal line taken from up the center of the post) to the minimum post insertion marking?

    2. How much rearward sag is apparent with the rider weight "preloading" the post leafs (obviously depends on rider weight, but an example would be fine)?

    3. Find a source for the "Flip Head Kit"? We would need one since our stoker saddle has 7x9mm carbon rails (default clamp is for 7x7mm round rails only).

  8. #33
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    Quote Originally Posted by joe@vwvortex View Post
    We've run the old Specialized Pave Zertz in back since we bought the tandem. Tried a thudbuster and my wife absolutely hated it. This thing actually works really well. Tough to find nowdays. The updated S-works version didn't work as well.
    Thanks for the info-
    Due to your post and other positive reviews I bought one of these on Ebay earlier this year- Brand new never installed and it's been great. Much more compliant over bad potholes and rough roads than the Thompson Elite we had been running. It's just right for our use. My stoker hated the suspension seat posts we'd tried.

  9. #34
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    Quote Originally Posted by twocicle View Post
    Reviewing the seatpost manual, I still have a couple questions:

    1. What is the distance from the middle of the saddle rail (horizontal line taken from up the center of the post) to the minimum post insertion marking?

    2. How much rearward sag is apparent with the rider weight "preloading" the post leafs (obviously depends on rider weight, but an example would be fine)?

    3. Find a source for the "Flip Head Kit"? We would need one since our stoker saddle has 7x9mm carbon rails (default clamp is for 7x7mm round rails only).
    twocicle on the Ergon post we have the distance from minimal insertion to center of seat rails is 241.3 mm or 9.5"

    Wife weights in at a hefty 127# and sag is 1/2-3/4 of a inch.

    Also on page 12 of the seatpost manual Ergon list a optional 7x9 oval adapter for carbon rails, which you would think would be readily available.

    Canyon also has the Canyon | Pure Cycling | Technology | VCLS Post 2.0 same post that you may also be able to find with the 7x9 head, two brothers own each company separately, problem with Canyon no sales of there bikes directly to the USA, I don't know if that holds true for accessories?

  10. #35
    Clipless in Coeur d'Alene twocicle's Avatar
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    Quote Originally Posted by joe@vwvortex View Post
    We've run the old Specialized Pave Zertz in back since we bought the tandem. Tried a thudbuster and my wife absolutely hated it. This thing actually works really well. Tough to find nowdays. The updated S-works version didn't work as well.

    Quote Originally Posted by ct-vt-trekker View Post
    Thanks for the info-
    Due to your post and other positive reviews I bought one of these on Ebay earlier this year- Brand new never installed and it's been great. Much more compliant over bad potholes and rough roads than the Thompson Elite we had been running. It's just right for our use. My stoker hated the suspension seat posts we'd tried.
    +1

    Looks like I've created a new "need it" request from my stoker.

    After I built up a new Specialized Amira single bike for my wife and initially used one of our many Thomson Elite posts to complete the original build, she rode that and was very happy with the road feel. We needed a seat post with a little more setback, so I swapped in a S-Works SL carbon post and didn't say much about it to her. Next ride, she came back and surprised me with rave reports about how much smoother the ride was with the carbon post. Well, after asking her for the last couple years if she thought she could use a different post (current is Thomson Elite) on the tandem, now she realizes there is a BIG difference even without any fancy suspension or dampeners and so wants a carbon post on the tandem too.

    I've heard of some technical issues with the Ergon (movable leafs causing post creep in the seat tube & collar, for one), and the 266gm Specialized CG-R likely won't work that well for a 95lb rider, so I'll be installing a Specialized S-Works SL Pavé post which has a nice light weight of ~200gm and no technical issues other than that it is a carbon post. I usually prefer a 2-bolt saddle mount as the older model had, but the single bolt design is said to work quite well too, so I'll just need to deal with that difference. The price point is pretty good as well.

    Of course using a carbon post now means we can no longer use a post mounted rack as we have done in the past while on supported tours. As such, will be doing a couple minor modifications to the Calfee to allow use of a standard pannier rack... something I hadn't planned for with the original build. The mods will involve simply changing out the seat stay/chainstay binder bolts that Calfee uses, plus maybe install a dual bolt seat post collar to allow a rack attachment there. Tada.

    Time to start shopping for a new lightweight pannier rack... Tubus Airy is looking good.
    Last edited by twocicle; 11-08-14 at 02:45 PM.

  11. #36
    Gear Combo Guru Chris_W's Avatar
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    Quote Originally Posted by twocicle View Post
    Time to start shopping for a new lightweight pannier rack... Tubus Airy is looking good.
    The Tubus Airy is great if you're putting side pannier bags on it, but it's far too narrow to mount a rack-top bag, which was probably what you were using on your seatpost mounted rack. I really like the Racktime Light-It, you can even buy a separate mounting kit to make any rack-top bag easy to put on and off with just a clip. The Light-It comes in different sizes, the one listed for 26" wheels is tall enough to easily fit over 700x28 tires and fenders on a couple of different bikes of mine.

  12. #37
    Clipless in Coeur d'Alene twocicle's Avatar
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    Quote Originally Posted by Chris_W View Post
    The Tubus Airy is great if you're putting side pannier bags on it, but it's far too narrow to mount a rack-top bag, which was probably what you were using on your seatpost mounted rack. I really like the Racktime Light-It, you can even buy a separate mounting kit to make any rack-top bag easy to put on and off with just a clip. The Light-It comes in different sizes, the one listed for 26" wheels is tall enough to easily fit over 700x28 tires and fenders on a couple of different bikes of mine.
    Chris, thanks for the heads-up on that. I didn't realize the lighter weight Tubus racks were so narrow at the top. Since we already have a Topeak RX trunk DX for our lightweight setup, I'm going to try out the new Topeak Roadie rack they have specifically for the RX series. This one connects to the brake bridge and seat stays, so we won't need any special seat post collar or fixing bolts. Not sure yet if it will clear a disc brake/caliper, and also if maybe it can attached to Calfee's rack bolts instead of mounting on the seat stays... checking it out.

  13. #38
    just another gosling Carbonfiberboy's Avatar
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    Quote Originally Posted by twocicle View Post
    +1

    Looks like I've created a new "need it" request from my stoker.

    After I built up a new Specialized Amira single bike for my wife and initially used one of our many Thomson Elite posts to complete the original build, she rode that and was very happy with the road feel. We needed a seat post with a little more setback, so I swapped in a S-Works SL carbon post and didn't say much about it to her. Next ride, she came back and surprised me with rave reports about how much smoother the ride was with the carbon post. Well, after asking her for the last couple years if she thought she could use a different post (current is Thomson Elite) on the tandem, now she realizes there is a BIG difference even without any fancy suspension or dampeners and so wants a carbon post on the tandem too.

    I've heard of some technical issues with the Ergon (movable leafs causing post creep in the seat tube & collar, for one), and the 266gm Specialized CG-R likely won't work that well for a 95lb rider, so I'll be installing a Specialized S-Works SL Pavé post which has a nice light weight of ~200gm and no technical issues other than that it is a carbon post. I usually prefer a 2-bolt saddle mount as the older model had, but the single bolt design is said to work quite well too, so I'll just need to deal with that difference. The price point is pretty good as well.

    Of course using a carbon post now means we can no longer use a post mounted rack as we have done in the past while on supported tours. As such, will be doing a couple minor modifications to the Calfee to allow use of a standard pannier rack... something I hadn't planned for with the original build. The mods will involve simply changing out the seat stay/chainstay binder bolts that Calfee uses, plus maybe install a dual bolt seat post collar to allow a rack attachment there. Tada.

    Time to start shopping for a new lightweight pannier rack... Tubus Airy is looking good.
    This is what we use with our carbon stoker post (CGR):
    Arkel Randonneur Rack - Seat Post Rack - Carbon Seat Post Friendly
    Arkel's Rack bag | Trunk bag

  14. #39
    Clipless in Coeur d'Alene twocicle's Avatar
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    Quote Originally Posted by Carbonfiberboy View Post
    Hanging 10-15lbs from the stoker's carbon saddle rails might not work in our case or at least is an unknown risk.

  15. #40
    Clipless in Coeur d'Alene twocicle's Avatar
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    Quick update to my post #35 above, ran into a little snag combining the Specialized Pave SL seatpost with a Terry Carbon Butterfly saddle. Problem is due to the Specialized side clamp 7x9mm vs the Terry's 10.4mm carbon rails. I had never run into this issue before, since I have always used 2-bolt seatposts and no side clamp versions.

    Terry advertises this saddle as having 9.6mm high rails. That would still work in the Pave clamp, however the actual rail height (measure 2 saddles) is 10.4mm, which exceeds the Pave's clamp capacity. To resolve the issue, we belt sanded the bottom of the solid carbon Terry rails to 9.4mm (reduced 1mm) which fit the Pavel clamp without further issue.

    Terry (and Selle Italia who AFAIK makes this saddle for Terry) should know better. The accepted standard for carbon rails is 7x9mm. The Terry Carbon exceeds that height by 1.4mm, not to mention their own advertised height by .8mm. Idiots.

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