Finally the rim I've been waiting to talk about. Pacenti SL23
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  1. #1
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    Finally the rim I've been waiting to talk about. Pacenti SL23

    Pacenti Debuts Wide, Shallow Aero Road Tubeless Rims - Bike Rumor

    I have about a thousand miles on my prototype Pacenti rim and I'm very pleased. The rim has the tubeless friendly internal shape like other recent rims. I have been using Michelin 23mm and 25mm tires with tubes so I can't comment on tubeless yet, but I might try at some point.

    With my 23mm Michelin tires, the sidewall is flush with the brake track. I think that this will prove to be a good aero combination. The spoke side of the rim is rounded and should be a benefit to that as well.

    The rim is welded and machined so braking performance is as excellent, no tick at the joint. My copy is 452g so it's competitive with it's class. I'd rather not have it much lighter as stiffness and durability will suffer.


    Last edited by ergott; 01-16-2013 at 06:24 PM.

  2. #2
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    Thanks for posting. Looks good for my next build in a few months time. Any idea on pricing? Also, are they center drilled?

    Pacenti Debuts Wide, Shallow Aero Road Tubeless Rims - Bike Rumor
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  3. #3
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    Looks like a nice design. Impressively low weight for the width/depth.

  4. #4
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    I have been waiting for these to build some wheels around. Thinking 20/24 with Chris King and CXRAY.
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  5. #5
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    This rim sounds very interesting. What does tubeless friendly actually mean? Does it require a Stans conversion? Do the tire beads latch up onto the rim like on a Shimano road tubeless rim? Thanks!
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  6. #6
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    The rim has an elevated bead like other tubeless ready rims. I use Stan's yellow tape (two layers for tubeless) and a valve stem. Tubeless friendly means you can run a tubeless system, but there is a maximum recommended pressure of 100psi.

  7. #7
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    Quote Originally Posted by ergott View Post
    Tubeless friendly means you can run a tubeless system, but there is a maximum recommended pressure of 100psi.
    Do you run lower pressure for the same tire size tubeless vs. tubed?

  8. #8
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    I always recommed a 5-10psi drop with the same size tire going tubeless. Most riders will benefit most at 80-90psi front and 85-95psi rear.

  9. #9
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    Quote Originally Posted by ergott View Post
    I always recommed a 5-10psi drop with the same size tire going tubeless. Most riders will benefit most at 80-90psi front and 85-95psi rear.
    Got you! Thanks. I haven't tried the tubeless yet, mainly due to lack of choices at the tire end.

  10. #10
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    Eric,

    One more thing... what tension did you end up with on the DS?

  11. #11
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    I build them to about 125kgf. I don't like working with any rim that can't take that tension. It gives the non drive side tension a fighting chance.

  12. #12
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    I totally understand. My threshold is slightly higher at 130 kgf.

  13. #13
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    Hello Eric,

    How stiff is the rim compare to 340's and A23's?

    Linus

    P.S. Nice Spooky.

  14. #14
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    I would have to use some sort of a jig to test that. I haven't them all side by side either.

  15. #15
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    Is the rim finish black anodized?

    Hard to tell from the pic - what is the finish like on the SL23? Like an H-plus/Hed type anodized or more like the smooth Kinlin?

    Looks like a great rim.

  16. #16
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    I got my rims! Here's my latest update.

    ergottWheels. Quality is my highest priority.: They are here! (Pacenti SL23 rims)

    The rims have a typical, shiny black anodized finish.

  17. #17
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    Very interesting rim - I have been looking around for a deeper profile wide rim that has a welded seam. But are these TOO LIGHT?

  18. #18
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    Quote Originally Posted by nhluhr View Post
    Very interesting rim - I have been looking around for a deeper profile wide rim that has a welded seam. But are these TOO LIGHT?
    Although I dont have any personal experience with the SL23 yet, it does not seem they are too light. Ergott is building them at 125kgf

  19. #19
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    Quote Originally Posted by ergott View Post
    I got my rims! Here's my latest update.

    ergottWheels. Quality is my highest priority.: They are here! (Pacenti SL23 rims)
    The rims have a typical, shiny black anodized finish.

    Great info, I'm looking at building up a set with CK R45 for my son's new ride (just picked up a Lynskey R330 for him, Lynskey had a great sale).

  20. #20
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    Hi ergott
    Is it possible to build these rims on rs80 hubs?
    Regards

  21. #21
    grizzly moderator
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    Can you comment on the SL23 rim stiffness compared to a HED C2 rim? Is the Pacenti as stiff? The HED has a lower profile and width but practically the same weight (458 vs. 452 grams). I'm wondering to what degree the balance between the increase in height/width while keeping the same weight (thinner gauge in parts of rim?) could affect the rim stiffness.

  22. #22
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    The rim was stiff building it up and out on the road I think it's comparable as well. I think the differences in weight and dimensions are real small.

    I would like to do a side by side comparison to be more accurate.

  23. #23
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    Quote Originally Posted by ergott View Post
    The rim was stiff building it up and out on the road I think it's comparable as well. I think the differences in weight and dimensions are real small.

    I would like to do a side by side comparison to be more accurate.
    Thanks. I know that because of your riding style you look at this the same way I do and value your opinion on this.

  24. #24
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    So where would the price start for a build, with reasonable hubs?

  25. #25
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    MSRP on the rims is $98 so you can factor in the cost of the rest of the components depending on whether you build them yourself or you buy the wheels from someone.

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