SRAM RED PF30 Ceramic bearings Bottom Bracket on Fuji SL 1.1 2018
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  1. #1
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    SRAM RED PF30 Ceramic bearings Bottom Bracket on Fuji SL 1.1 2018

    Hello all,
    I really like the Fuji SL 1.1 frame, the one thing that is steering me away from it is the fact that it is the fact that, it uses PF30 Bottom Bracket (SRAM RED Ceramic bearings), and I have heard lots of bad things about PF30 BB, they are creaky and wear out quickly and in general should be avoided. Even some people went into the trouble of installing a threaded bottom bracket adapters for their bike frames that come with PF30.

    Is PF30 really that bad?
    Are SRAM RED PF30 Ceramic bearings bottom bracket a bad choice or are they an exception to press fit BBs and they do actually work well?

    Thank you

  2. #2
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    Ceramic bearings on a bike are a ridiculous waste of money. Period.
    The ONLY advantage ceramic bearings have is in ultra-hot situations and ultra high-speed usages (like in a jet engine). Ceramic bearings in a bicycle are merely a status symbol, costing extra money while providing nothing. It's just the latest way if getting road cyclist to waste money on some douchey gadget. Every year or 2, it's something new, and I've seen quite a few (like the $10 titanium water bottle cage bolts about 15-20 years ago...).
    "L'enfer, c'est les autres"

  3. #3
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    I've seen PF30 be ok for years (my personal bike and others) and I've seen PF30 make noise/go bad in 6 months. Most manufacturers are producing bikes with PF BB designs, so it's hard to get away from it. It's just something that needs to be kept an eye on, just like threaded BB's. Still have to remove threaded BB's and clean and grease them occasionally too. For me PF30 is not a deal breaker when looking at a frame.

    As far as ceramic goes vs stainless steel, it will lighten your wallet by about 100% more than stainless. And ceramic pertains to the ball bearing, not the resin cup that gets pressed into the frame.
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  4. #4
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    If the PF30 is a problem you can chuck it in the trash and get a thread together bb that will fit into the 46.0mm frame and they're usually very quiet. They are not an adapter, it's a pairof alloy cups that thread into a central sleeve instead of just being pressed into the frame.
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  5. #5
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    Quote Originally Posted by No Time Toulouse View Post
    Ceramic bearings on a bike are a ridiculous waste of money. Period.
    And since they are not visible to the casual observer, you won't pick up any hot women with them the way you will with a 16 spoke radial laced 50mm deep aero front wheel.
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  6. #6
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    To be fair to OP, it's coming stock on the bike, he's not talking about adding it aftermarket. I can't imagine it's a big factor in driving up the overall cost of the bike in this case.

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    Thank you...Can you please shed more light into the process.
    Won't I need to thread the frame in that case?
    As far as I know, the whole idea of PF BB is for carbon fiber frames so not to thread them where the BB fits...which honestly I think it is silly

  8. #8
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    That is absolutely correct thank you
    it is all coming as one package so price is not a big factor here.

  9. #9
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    I don’t have any experience with PF30 because I choose only frames with threaded bottom brackets. If you’re looking for carbon frame with threaded bottom bracket then there’s Specialized Tarmac Disk Sport, Specialized Roubaix Sport, Pinarello’s, and Bianchi Intenso.

    Rode with friends on long group ride, and a friend on a Giant has a creak/click (not sure if it was bottom bracket). Was annoying to hear and must be worse if the creak was coming from your own bike.

  10. #10
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    Quote Originally Posted by kasha View Post
    Thank you...Can you please shed more light into the process.
    Won't I need to thread the frame in that case?
    As far as I know, the whole idea of PF BB is for carbon fiber frames so not to thread them where the BB fits...which honestly I think it is silly
    Google image search 'PF30 thread together bottom bracket'. The bb doesn't thread into the frame it threads into itself.
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  11. #11
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    Thank you so much
    I looked them up, found a good reference on the internet => https://fitwerx.com/creaky-noisy-bot...ket-solutions/
    it is very helpful to know I won't be stuck with a potentially creaky pf30 BB that comes on the fuji that i like to get.

  12. #12
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    Quote Originally Posted by jetdog9 View Post
    To be fair to OP, it's coming stock on the bike, he's not talking about adding it aftermarket. I can't imagine it's a big factor in driving up the overall cost of the bike in this case.
    ^^^ This.
    No big deal if it comes stock. Just replace it with a regular bearing if/when needed.

    Quote Originally Posted by kasha View Post
    Thank you so much
    I looked them up, found a good reference on the internet => https://fitwerx.com/creaky-noisy-bot...ket-solutions/
    it is very helpful to know I won't be stuck with a potentially creaky pf30 BB that comes on the fuji that i like to get.
    Beware... the threaded adapter/BB's only work with 24mm spindle cranks. According to the specs that bike comes with SRAM RED carbon w/30mm axle. I don't know of anyone making a threaded adapter that'll work with 30mm axle.
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  13. #13
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    Quote Originally Posted by tlg View Post
    ^^^ This.
    No big deal if it comes stock. Just replace it with a regular bearing if/when needed.

    Beware... the threaded adapter/BB's only work with 24mm spindle cranks. According to the specs that bike comes with SRAM RED carbon w/30mm axle. I don't know of anyone making a threaded adapter that'll work with 30mm axle.
    It's not a threaded adapter, it's a bottom bracket where the 2 cups thread into the central sleeve. They still press into the frame but because all 3 pieces thread together they do a great job of eliminating cup movement and therefore noise. And they are available in 24mm, 22/24mm, and 30mm. I'd bet any minute we'll see on in 29mm for DUB.
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  14. #14
    tlg
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    Quote Originally Posted by cxwrench View Post
    It's not a threaded adapter, it's a bottom bracket where the 2 cups thread into the central sleeve. They still press into the frame but because all 3 pieces thread together they do a great job of eliminating cup movement and therefore noise. And they are available in 24mm, 22/24mm, and 30mm. I'd bet any minute we'll see on in 29mm for DUB.
    Adapter. Conversion. Potato Potatoh

    The Praxis Conversion BB: Praxis does not make a bottom bracket for use with a 30mm crank

    Who makes a 30mm?
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  15. #15
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    Quote Originally Posted by tlg View Post
    Adapter. Conversion. Potato Potatoh

    The Praxis Conversion BB: Praxis does not make a bottom bracket for use with a 30mm crank

    Who makes a 30mm?
    Enduro for one. An adapter looks like this:
    ONECOL.jpg

    A bottom bracket is...well...a bottom bracket. The Praxis and Enduro parts are not adapters, they're bottom brackets.
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  16. #16
    tlg
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    Quote Originally Posted by cxwrench View Post

    A bottom bracket is...well...a bottom bracket. The Praxis and Enduro parts are not adapters, they're bottom brackets.
    And Praxis calls it a "conversion". But they don't make a 30mm.
    Who makes a 30mm?
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  17. #17
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    Quote Originally Posted by tlg View Post
    And Praxis calls it a "conversion". But they don't make a 30mm.
    Who makes a 30mm?
    First sentence in my last post..."Enduro for one..."

    https://www.endurobearingsonline.com...or-30mm-cranks
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  18. #18
    tlg
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    Quote Originally Posted by cxwrench View Post
    First sentence in my last post..."Enduro for one..."

    https://www.endurobearingsonline.com...or-30mm-cranks
    Damn.. those are expensive.
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  19. #19
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    Thank you Sir.
    Indeed the Enduro stuff are expensive, I checked Wheels manufacturing. they do have the 30mm ones and yet half the price!!!
    https://wheelsmfg.com/bottom-bracket...ameter_mm=6251

  20. #20
    tlg
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    Quote Originally Posted by kasha View Post
    Thank you Sir.
    Indeed the Enduro stuff are expensive, I checked Wheels manufacturing. they do have the 30mm ones and yet half the price!!!
    https://wheelsmfg.com/bottom-bracket...ameter_mm=6251
    That is not a threaded BB. It a press fit BB.
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  21. #21
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    Quote Originally Posted by tlg View Post
    That is not a threaded BB. It a press fit BB.
    It is exactly what I recommended a week ago. It's a thread together bottom bracket that fits in a 46.0mm PF bottom bracket shell.
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  22. #22
    tlg
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    Quote Originally Posted by cxwrench View Post
    It is exactly what I recommended a week ago. It's a thread together bottom bracket that fits in a 46.0mm PF bottom bracket shell.
    No its not.

    "Our original PF30 bottom bracket is a significant upgrade to any OEM PF30 bottom bracket. Two machined aluminum cups with replaceable bearings offer increased durability and bearing life, while keeping a simple press together method for installation and maintenance"

  23. #23
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    Quote Originally Posted by tlg View Post
    No its not.

    "Our original PF30 bottom bracket is a significant upgrade to any OEM PF30 bottom bracket. Two machined aluminum cups with replaceable bearings offer increased durability and bearing life, while keeping a simple press together method for installation and maintenance"
    Oooops, you're right. That one is straight press-fit. The thread-together units are definitely the way to go.
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