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  1. #1
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    Alfine: diff between 500 and 501 labeled hubs?

    My subject is my question... Just curious what the differences are, and if there is a reason to get one over the other.

  2. #2
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    hei,

    Shimano tech tips say:

    "Roller clutches are used in place of pawls to reduce
    noise. The new hubs are now almost completely silent, there is
    only a ratcheting noise when backpedaling.
    There is also a new torque
    limiter which will make it harder to damage the hub
    with too much pressure from the pedals."

    SG-S500 A-type use 2 roller clutch, and SG-S500 B-type & SG-S501 3 roller clutch.
    How to identify A & B type ?
    A-type is SG-S500 and B-type is labeled SG-S500

    I use both hubs, older A-type 500 and new 501.
    501 is more silent and gear engaging is maybe tiny bit faster.
    But no big difference between hubs.

  3. #3
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    Quote Originally Posted by irrah
    How to identify A & B type ?
    A-type is SG-S500 and B-type is labeled SG-S500
    Thanks for the info, but you lost me with this part!

  4. #4
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  5. #5
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    Quote Originally Posted by irrah


    That is hilariously not obvious without that pict. Thanks for clarifying.

  6. #6
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    Seriously? An underline. That, right there, is a perfect example of Shimano trying to be sneaky and prevent the consumer from asking any questions of the dealer.
    speedub.nate
    MTBR Hiatus UFN

  7. #7
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    That's good info, Thanks. I'm thinking of using the

    501 instead of SS on the steeper rides here in the east bay hills. A different gear or 2 would be nice on the grades of 20 to 35 %.
    Does the 501 handle SS type riding style?


    Quote Originally Posted by irrah
    hei,

    Shimano tech tips say:

    "Roller clutches are used in place of pawls to reduce
    noise. The new hubs are now almost completely silent, there is
    only a ratcheting noise when backpedaling.
    There is also a new torque
    limiter which will make it harder to damage the hub
    with too much pressure from the pedals."

    SG-S500 A-type use 2 roller clutch, and SG-S500 B-type & SG-S501 3 roller clutch.
    How to identify A & B type ?
    A-type is SG-S500 and B-type is labeled SG-S500

    I use both hubs, older A-type 500 and new 501.
    501 is more silent and gear engaging is maybe tiny bit faster.
    But no big difference between hubs.

  8. #8
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    Quote Originally Posted by SnakeCharmer
    501 instead of SS on the steeper rides here in the east bay hills. A different gear or 2 would be nice on the grades of 20 to 35 %.
    Does the 501 handle SS type riding style?
    Who cares? You need to be the guinea pig anyway. Place your order!

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