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Deda Superzero Carbon Bars – Too Large to Clamp

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  • September 30, 2018 at 3:59 pm #29002
    Canyon48

    Hi,

    I got myself some Deda Superzero carbon bars to replace my Superzero alloy bars. I (tried) to mount them to my Deda Superzero stem, but they were simply too large and deformed quite a lot (and creaked a lot!).

    I followed the assembly instructions and used a torque wrench. I’ve installed carbon bars twice before (FSA and Canyon) and never had an issue.

    The creaking noise happened at only 3Nm (Deda specs 4Nm) – and the bars were clearly deformed at only 2Nm.

    I called Sigma Sports and they asked me to send the bars back for warranty. Anyone else had any issues with Deda bars being oversize at the clamp?

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Viewing 5 replies - 1 through 5 (of 5 total)
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  • October 28, 2018 at 9:30 am #928137
    0
    ACBush

    What is that coating on it

    What is that coating on it where the stem connects?    I assume some kind of friction coating… painted on or stick on?

    My Superzero carbon bars certainly don’t have that on; as Nick T mentions, if it’s significantly adding to the diameter, that’ll likely be the issue.    

    Any resolution on the warranty replacement?

    September 30, 2018 at 8:04 pm #928135
    0
    Canyon48
    Nick T wrote:
    Probably too much clearcoat sprayed on, warranty, replace etc

    That was my first thought.

    Rather sad that they went snap – they are lovely bars!

    They measured 31.82mm, way over the 31.7mm claimed!

    September 30, 2018 at 6:53 pm #928133
    0
    Nick T

    Probably too much clearcoat

    Probably too much clearcoat sprayed on, warranty, replace etc

    September 30, 2018 at 4:07 pm #928131
    0
    Canyon48

    The bar is too big for the

    The bar is too big for the stem faceplate to fit around without “biting”

    September 30, 2018 at 4:05 pm #928129
    0
    Canyon48

    Obvious warping at only 2Nm

    Obvious warping at only 2Nm torque.

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