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Thread: BB swap

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    BB swap

    Does anyone know how much it is to have a bike shop swap out a bottom bracket? Would it be cheaper to just buy the tool? The BB is unidentifyable, at least to me...

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    Pain Cleanseth Feltup's Avatar
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    It would be cheaper to buy the tool and do it yourself. It is easy. Once you remove the BB you will be able to identify it.
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    Quote Originally Posted by Feltup
    It would be cheaper to buy the tool and do it yourself. It is easy.
    ......assuming he already has a crank extractor.....
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    It depends. If, say, the one you want to remove is the old fasioned cup-and-ball, and the one you want to put in is a new Shimano cartridge (or any other combination that requires two different tools), it might be better to get your shop to do it; this would save you buying two tools (or three, if you need to get the cranks off). Also, if you take it to the shop you bought the new BB from they might fit it for free or at a discount.

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    Senior Member Retro Grouch's Avatar
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    Depends

    Quote Originally Posted by trekkie820
    Does anyone know how much it is to have a bike shop swap out a bottom bracket? Would it be cheaper to just buy the tool? The BB is unidentifyable, at least to me...
    It kind of depends on what you have now and what you want to replace it with. You might be buying one tool or more tools to take out the old bottom bracket (fixed cup can be an aptly named part) and a different one to install the new one. Then there's the issue of what new bottom bracket? The new bottom bracket has to match your frame and crank and there's lots of different sizes.

    I'm thinking the shop labor cost for doing the swap will probably just about match the price of a splined bottom bracket tool.

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    Republican Rider Punisher's Avatar
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    Park crank extractor $12;

    Park BB tool about $10;

    Knowledge of removing crank and bb; priceless.

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    Senior Member 55/Rad's Avatar
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    Punisher is right. If you are mechanical by nature, the value of doing it yourself could save you a lot more in the long run.

    55/Rad

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    Perineal Pressurized dobber's Avatar
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    Quote Originally Posted by Punisher
    Park crank extractor $12;

    Park BB tool about $10;

    Knowledge of removing crank and bb; priceless.
    Don't forget shipping. If you don't have a big wrench to fit the BB tool, another couple of bucks. An metric allen head wrench/socket for removing the crank bolts. Another wrench for the pedals.

    Ah the wonders of bike mechanics. Just up sized the tool box this weekend.

    Last (and only time) I had my LBS do it, $30 and 30 mminutes. Not to shabby to be in and out before I'd finished browsing the shop.

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    Quote Originally Posted by dobber
    Don't forget shipping. If you don't have a big wrench to fit the BB tool, another couple of bucks. An metric allen head wrench/socket for removing the crank bolts. Another wrench for the pedals.

    Ah the wonders of bike mechanics. Just up sized the tool box this weekend.

    Last (and only time) I had my LBS do it, $30 and 30 mminutes. Not to shabby to be in and out before I'd finished browsing the shop.

    Okay, the cranks aren't even on it right now, i just need to get the BB out. both bottom brackets are the sealed, cartridge types, and the one i want to put on there just has shorter axle(its a single speed, i want a good chainline). It has a tooth pattern on the inside diameter, and i think that there are universal tools out there for it. Shouldn't be too expensive. We'll see though

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    My LBS charged $5 to take out a siezed BB, so to take a regular one out and put a new one in would probably be $5 too.

    However, I would suggest trying it yourself, because you will learn a lot from doing it yourself. I have learned a whole lot from servicing my bike by myself (except for that BB).

    Good luck!

  11. #11
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    Quote Originally Posted by gwhunt23
    My LBS charged $5 to take out a siezed BB, so to take a regular one out and put a new one in would probably be $5 too.

    However, I would suggest trying it yourself, because you will learn a lot from doing it yourself. I have learned a whole lot from servicing my bike by myself (except for that BB).

    Good luck!

    Yeah, im getting the tool for it friday...im more of a hands on kind of guy, i hate taking my car to a mechanic, and i hate having someone else work on my bike. This new bike should be up and running by next sunday night, and first ride should be monday!

  12. #12
    Direct Hit Not Required BlastRadius's Avatar
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    Just remember, the right (drive) side of the cartridge BB is reverse threaded (righty loosey, lefty tighty).

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    Hand thread the cups and you will have no problems. Use a good grease(a lot) and some teflon tape on the threads too. The tape works wonders on keeping creaks out.

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