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  1. #1
    Banned. mooncake's Avatar
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    FSA Compact Gossamer MEGAEXO Cranks vs. Ultegra 10 spd.

    How is the quality of the construction, may it be the chainrings or the crankset in general compared to a Shimano Ultegra?

  2. #2
    Senior Member shabbasuraj's Avatar
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    Ultegra all the way...

  3. #3
    The Rabbi seely's Avatar
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    The Ultegra is going to be a nicer fit/finish, especially noticeable in the shift quality due to the nicer chainrings.
    commuter turned bike mechanic turned commuter (also a Velocity USA employee, but this is my personal account)

  4. #4
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    The FSA is a "compact" crank (110 mm BCD) and the Ultegra is a "standard road" crank (130 mm BCD) so they aren't directly comparable. Shimano will have a compact crank available soon. For my money, I'd stick with Shimano and wait for their compact if that's what you want.

  5. #5
    05 Roubaix Comp Double
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    Quote Originally Posted by seely
    The Ultegra is going to be a nicer fit/finish, especially noticeable in the shift quality due to the nicer chainrings.
    Well if they were equal,both compact or both not,your not going to notice any difference except in looks.You'll notice more in different FD then the .1% difference in chainrings. They are both good,the compact carbon or the reg shinny Ultegra.
    Touch every 3rd person and you'll find an idiot.

  6. #6
    Senior Member Nessism's Avatar
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    Some people have reported problems with keeping the left side crank arm tight with FSA's MegaExo style cranks. They use a rubber crush washers and a large bolt to hold the arm on, similar to a regular crank. I think the rubber starts to relax with usage which causes the tension on the bolt to drop and loosen. From what I understand, FSA has messed around with these different crush washers to find the right formula - with suspect results. Shimano's LH crank arm holds on with two pinch bolts which will not loosen with usage - a more robust design in my opinion.

    Hope this helps.
    Becareful buying/selling bike parts on-line. I learned the hard way. :(

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  7. #7
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    Ultegra = Stiffer + Lighter (980g vs. 777g) = Faster

  8. #8
    05 Roubaix Comp Double
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    Quote Originally Posted by Primo Tiki
    Ultegra = Stiffer + Lighter (980g vs. 777g) = Faster
    LMAO I'm thinking 8oz wont make to much difference in speed,do you? You can pee more before you ride and do that.
    Touch every 3rd person and you'll find an idiot.

  9. #9
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    Quote Originally Posted by shokhead
    LMAO I'm thinking 8oz wont make to much difference in speed,do you? You can pee more before you ride and do that.
    Half a pound on a road bike is a lot

  10. #10
    Senior Member Nessism's Avatar
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    Quote Originally Posted by Primo Tiki
    Ultegra = Stiffer + Lighter (980g vs. 777g) = Faster

    A 172.5mm 6600 Ultegra crank is 840 grams with the bottom bracket (weighed by myself on a triple beam balance scale).

    According to Weight Weenies a 175mm Gossamer Compact MegaExo crank with bottom bracket weighs 909 grams. Add 10 extra grams for a regular crank vs. compact and the total is approximately 920 grams.

    That makes the total difference approximately 80 grams (or less than 3 oz.).

    Also, usually heavier means stiffer for the most part if that's important to you.
    Last edited by Nessism; 12-26-05 at 08:36 AM.
    Becareful buying/selling bike parts on-line. I learned the hard way. :(

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  11. #11
    05 Roubaix Comp Double
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    I'm pretty sure the FSA is less inc the BB,maybe around 750g.TiKi, if you dont race and your just an everyday rider,you wouldnt notice 8oz either way. I'd go with which one looks best on my bike.
    Touch every 3rd person and you'll find an idiot.

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